totse.com | Computer File Extentions, Part 1(A-F)


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	Computer File Extentions, Part 1(A-F) .??_ Files ending in "_" are often compressed install files of the same name (e.g., .EX_ expands to .EXE, .DL_ expands to .DLL, etc.) .A UNIX Library [UNIX] ADA Program .A01 ARJ Multi-volume Compressed Archive (can be 01 to 99) (also see .000) .A01 - .A10 OzWin CompuServe E-mail/Forum Access SYSOP File .A06 Lotto Pro 2002 Smart Number Ticket .A11 AIIM Graphic .A2A APLASCII EISPACK File (For finding eigenvalues and eigenvectors) Sharp APL Workspace Export File .A2M AudioToMidi Settings File (Russian site) .A3 Unrelated Inventions Audiotools Show Log .A31 Authorware 3.x Library .A3D Amapi 3D Modeling .A3K Yamaha A3000 Sampler File .A3L Authorware 3.x Library .A3M Unpackaged Authorware MacIntosh File .A3W Unpackaged Authorware Windows File .A41 Authorware 4.x Library .A4L Authorware 4.x Library .A4M Unpackaged Authorware MacIntosh File .A4P Authorware File Without Runtime .A4W Unpackaged Authorware Windows File .A51 Authorware 5.x Library .A5L Authorware 5.x Library .A5W Unpackaged Authorware Windows File .A64 Artist 64 [XnView] .A65 Macromedia Authorware v6.5 (unverified) .A8 Cubicomp PictureMaker 24bit 3D Animation (DOS-based animation program; graphics cards external to computer; Cubicomp closed 1990) .A86 A86 Assembler Program File .AA Audio Book File PROGNOSIS Automated Analyst Document File .AAA Xtal Backup (System of Crystallographic Programs) Softphrase Automation File App Cam Automation File Sybase SQLAnywhere Temp File .AAB Macromedia Authorware Binary .AAC MPEG-2 Advanced Audio Coding File (Advanced Audio Coding File Info) (e.g., Homeboy, PsyTEL, and others) .AAF Advanced Authoring Format File (Multimedia format) .AAM Authorware Shocked File .AAO America's Army Map .AAP Apollo Advanced Playlist .AAS Authorware Shocked Packet Bong Script File .AAT Arcinfo Line Data Attribute Data (GIS-related file) .AB Applix Builder File .AB2 Parson's Address Book .AB3 PhotoImpact Album File .AB4 ENIAC Computing AB4 Accounting & Business File .AB6 AB Stat Data .AB8 AB Stat Data .AB$ AutoCAD Spooled Plot File .ABA Palm Address Book File .ABC Flowchart Musical Notation Language File (folk melodies originally) Pro-Act (Activity Based Costing) ABC Programming Language Athena 16 Address Book (Microsoft Internet Mail Address Book Type) .ABD AmBiz Bonus Calculator Data File Adventure Builder Database .ABF Adobe Binary Screen Font (binary version of .BDF) .ABG Fifa World Cup Game Data File .ABK Corel Draw AutoBackup Any Automatic Backup HP-95LX Appointment Book File .ABL Maxagrid Avails Data File (text format) .ABM HitPlayer Audio Album File Photo Impressions 2000 Album Album File (various) .ABO Applix Builder Turbo File .ABR Photoshop Brush .ABS Abstracts MPEG Audio Sound File [MPEG] PC GNU Compiler Output Abscissa Data File Optocat [XnView] .ABT The Arbiter Sports Official Schedule [Viewer] .ABW AbiWord Document File .ABX WordPerfect Address Book File .ABZ AbszOrb (textured spinning orb creator) .AC CaseWare Working Papers Client File .AC_ CaseWare Working Papers Compressed Client File .AC$ AutoCAD Undo Info .AC3 AC3 Audio File Format [DVD Maestro, DVD Conductor] .ACA Microsoft Agent Character File Project Manager Workbench File .ACB ACMB Graphic Image AOL Cab Launcher (archived data file) .ACC DR-DOS Viewmax File Microsoft Composer File (used to be Altamira Composer, shipped with FrontPage, no longer sold) Atari ST Executable File .ACD Chromeleon Channel Raw Data Sonic Foundry Acid Music File allCLEAR Flowcharting File Microsoft Agent Character Definiton File ALAN Game File [Use ALAN Interpreter] .ACE The Ace Archiver Compressed File Aces200 [XnView] .ACF Microsoft Agent Character File Photoshop Custom Filter DB/TextWorks Database Access Control File .ACG Microsoft Agent Preview File .ACGI AppleSearch CGI Interface (a form of script like CGI) .ACH Rockwell Software Logix 5 File Speccy Snapshot .ACI ACI Development Appraisal .ACL Corel Draw 6 Keyboard Accelerator Microsoft Office AutoCorrect List ACL For Windows (data mining software) RaidenFTPD Rights File Access Control List .ACM Audio Compression Manager Driver (Windows) Movie File in some games Photoshop Command Button Windows System File ACBM Image File Interplay Compressed Sound File Infinity Game Engine Sound (Use ACM2WAV.EXE for .ACM to .WAV and SND2ACM.EXE for .WAV to .ACM) [More Info] .ACMB Graphics File (ACMB format, see .ACB) .ACO Photoshop Color Swatch File .ACP Microsoft Office Assistant Preview File [Buy Office XP at Shop.Microsoft] File Used by Adobe Acrobat Paper Capture .ACQ AcqURL File (bookmark manager) .ACR American College of Radiology File Dicom [XnView] .ACS Microsoft Agent Character File .ACT Microsoft Office Actor Program File [Buy Office XP at Shop.Microsoft] FoxPro Documenting Wizard Action Diagram Photoshop Color Table Hash Animation:Master Action Action! Presentation DataWave Physiological Data File .ACU AppleLink-PE Compression Format (created by Floyd Zink; overtaken by Andy Nicholas' ShrinkIt; ShrinkIt should unpack) COBOL Intermediate Object File .ACV OS/2 Audio Drivers Photoshop Saved Curve Also see .ACW Microsoft Accessibility Wizard Settings .ACX FOCUS/WebFOCUS File Description Atari ST Executable File .AD AfterDark Screen Saver Ascend Password Protocol File .AD! OzWin CompuServe E-mail/Forum Access QS-Special - Get Marked Online .AD2 2-bit Compressed Voice File .AD3 3-bit Compressed Voice File .ADA ADA Program File ActiveDocs Answer Set .ADB ADA Package Body HP Organizer Appointment Database ALLDATA (automotive diagnostic info) .ADC Chromeleon Demo Data File ActiveDocs Clipping Catalog Scanstudio 16-color Bitmap Graphic File Lingvo Dictionary Text File .ADD OS/2 Adapter Device Driver Adobe Pagemaker File Advantage Database Server Data Dictionary .ADE Microsoft Access Project Extension [Buy Office XP at Shop.Microsoft] ADC Audio File .ADF Adapter Description File Admin Config File Amiga Disk File (Uncompressed 901120 byte DD Diskimage) [Amiga Forever] Dog Creek QC Mask File ReliaSoft ALTA 1 (Quantitative Accelerated Life Testing Analysis Software) Actual Drawing File MicroSim PCBoard Photoplot Aperture Definition File ArcView ARC/INFO Coverage Data File Wyatt Technology ASTRA®Chromatography (light scattering chromatography analysis) .ADI AutoCAD Plotter File Advantage Data Server Database Index File .ADJ LISCAD Plus Adjustment File .ADL QEMM MCA Adapter Description Library [MCA] OzWin CompuServe E-mail/Forum Access QS-Special Get Marked .ADM After Dark Screen Saver Module Windows Policy Template [Also used by various Microsoft Programs] Addict Compiled Dictionary Advantage Data Server Database Memo File .ADN 1-2-3 Add-in Utility Microsoft Access Blank Project Template [Buy Office XP at Shop.Microsoft] .ADO Photoshop Duotone Options Stata Program .ADP FaxWorks Modem Setup File Astound Dynamite File Microsoft Access Project [Buy Office XP at Shop.Microsoft] AOLserver Dynamic Page File [AOL] .ADR After Dark Random Screen Saver Module Address Plus Database Smart Address Address Book Address Book Opera Web Browser Bookmark File .ADS ADA Package Specification ADS Applications File .ADT HP NewWave Card Application Data File Advantage Data Server Database File Lingvo Dictionary File AdTech Fax File AutoCAD Audit Report File Casio Travel Phrase Database .ADV GUS Virtual Device Driver .ADW ADHAWIN Multilingual Transliteration Scheme .ADX Lotus Approach Index File Archetype Designer Document Dynazip Active Delivery Script Sega Dreamcast Audio File [Source of files] .ADZ GZ-Packed Amiga Disk File (see ADF) [Amiga Forever] .AE SoftQuad Author/Editor File .AEF ELECTRICAL Designer .AEG Netmino File (SW under development Oct 2002) .AEH iPer Advanced Embedded Hypertext .AEP ArcExplorer Project File .AER Adobe Atmosphere File [As of Mar 2002 in beta] .AEU Microsoft AutoRoute Express Europe Route .AEX PGP Armored Extracted Public Encryption Key [PGP] Art Explosion Greeting Card Factory Deluxe .AF2 ABC Flowchart (Now Micrografx FlowCharter) .AF3 ABC Flowchart (Now Micrografx FlowCharter) .AFC Apple Sound File ArisFlow Commander File .AFD ArisFlow Diagram Prismo Graphics ActiveFile Data .AFF AnyForm Form .AFI Truevision Bitmap Graphic .AFL Lotus Font .AFM Outline Font Metric HP NewWave Cardfile Application LOUT File (High-Level Language For Document Formatting) .AFP Flowchart Symbol Palette Papyrus Document Storage Format Prismo Graphics ActiveFile Proxy IBM Transactional Data Format (Advanced Function Print) (AS400 computer) Gangsters Game File (unverified) .AFS Filter Factory Photoshop Filter [Added] Sega Dreamcast Compressed Audio Adobe Type Manager Font Set .AFT Flowchart Template AnyForm Template .AFW Flowchart Work Area .AFX Auto FX Photographic Edges (Photoshop add-in) .AG Applix Graphic Argus Spreadsheet File Lotus Agenda Application .AG4 Access G4 File [Buy Office XP at Shop.Microsoft] .AGF Atlas GeoFile .AGP Aspen Graphics Pages .AGW Aspen Graphics Windows .AHF ASP Header File .AHP AutoCAD Help File .AHQ AudioHQ Plugin Module .AHS Photoshop Halftone Screens .AI Adobe Illustrator Vector Graphic [XnView] Corel Trace Drawing Progress Database After Image File Advantage Database Server File EARS Component File (EARS = UK Liberal Democrats Election Agents Record System) [Filename starts with E] .AI? Generic Encapsulated PostScript Graphic Format (?=3, 4, 5, 6, 7) .AIF Knowledgeware Setup Information Audio Interchange File [IrfanView] SymbianOS Application Information File (set application properties) .AIFC Audio Interchange File [IrfanView] .AIFF Audio Interchange File [IrfanView] .AIH ArcView Optional Index File (GIS-related file) .AIJ Oracle After-Image Journal .AIL AutoImager File (batch image conversion) .AIM AOL Instant Messenger File [AOL] .AIML Artificial Intelligence Markup Language .AIN AIN Compressed Archive ArcView Optional Index File (GIS-related file) .AINSO VAX CRYSTALS Chemical Crystallogaphy File .AIO APL File Transfer Format .AIP Audiosoft Parameter File Adobe Illustrator Plug-in Star Trek Armada Arficicial Intelligence Parameters .AIQ AzureIQ Client File (IT Audit Reporting) .AIR Align It! Resource File Flight Simulator Aircraft Performance Info File [Free Flight Dynamic Editor] .AIS Array of Intensity Samples (Graphic) Velvet Studio Instruments ACDSee Image Sequence File .AIX HP NewWave Cardfile Application Data .AKF Acrobat Key File .AKW RoboHELP Help Project Index File .AL Oracle File (used for networking) .ALA Alan Adventure Language File Sharp Fax File (unverified) .ALB JASC Image Commander Album Steinberg Cubase or VST Backup Song File Photo Soap2 File .ALBM webAlbum Photo Album HP Photosmart Photo Printing Album .ALC Norton Internet Security Ad Server File MP3 Embedded Dynamic Lyrics .ALE Avid Log Exchange .ALF Abacus Law File ALF Logic File ("Another logical framework"--structure editor for Martin-L?f's monomorphic type theory) AdventNet Look and Feel Standards (ALFSTANDARDS.ALF) Aventail Connect License File (AVENTAIL.ALF) VPCom Remote User Configuration File LANDesk Client Manager Configuration File ACT! User Logon Tracking Color Quick Label Cadence Ambit BuildGates .ALG Netmino File (SW under development Oct 2002) .ALI SAP Proprietary Format Document File OM2 OMALI Native OMALI Document .ALIAS Alias Image [XnView] .ALIGN Insight II Sequence Alignment File .ALL Arts & Letters Symbols and Characters WordPerfect Printer Info Steinberg Cubase or VST Song File Lotus 1-2-3 Always Working Page Format File .ALS Alias Image [XnView] Calmira Shortcut File .ALT WordPerfect Menu File ReliaSoft ALTA 6 (Accelerated Life Testing Analysis Software) .ALV Photoshop Levels Aladdin Knowledge Systems Vbox Available Languages File (software distribution) .ALX OM2 OMALI Plug-in Extension .ALZ ALZip Compressed File (Korean site) Game File (Dark Eden and others) .AM Applix SHELF Macro Advantage Database Server File Music File .AM2 AutoPlay Menu Studio Version 2 .AM3 AutoPlay Menu Studio Version 3 .AMB Radiance Ambient File Format .AMC Ant Movie Catalog .AMF Advanced Module Format Music File DSMIA/Asylum Module Music Amiga Metafile .AMG AMGC Compressed Archive (alternate site) AMG ACTOR System Image Netmino File (SW under development Oct 2002) .AMI Cocreate SolidDesigner Annotation File Amiga Paint [XnView] .AMIGA Amiga File .AML AutoMage (Automation/Macro Software) .AMM AMM File (pattern design pgm for Universal flat knitting machines) .AMP Photoshop Arbitrary Map Settings PlayMedia AMP MP3 Audio File .AMR Adaptive Multi-Rate Codec (Phone sounds) [Player] .AMS Extreme's Tracker Module Format Photoshop Monitor Setup Velvet Studio Module .AMW AMOS Data File (structural modeling, analysis of covariance structures, or causal modeling) .AMX MetaMOD Half-Life Plug-in .AMZ The Amazon Trail Saved Game .AN Groundworks Text File .AN1 WWG DA-30 Capture File .AN8 Anim8or 3D Animation .ANC Canon Computer Pattern Maker File .AND Collins Electronic Dictionary Data (Windows) / Concise Oxford Dictionary (DOS) .ANF AcuteNotes File (contains one or several notes order in a hierarchy) .ANI Animated Cursor Microangelo [IrfanView] NeroMix File .ANIM Amiga IFF Animation [use Winamp] .ANL Project Analyzer Saved Analysis .ANM DeluxPaint Animation .ANN Help Annotation .ANO Annotation File (often used with annotating PDF files) .ANS ANSI Graphic [ANSI] Microsoft Word Text and Layout [Buy Office XP at Shop.Microsoft] .ANSR AnswerTool File .ANT SimAnt for Windows Saved Game File .ANV AirNav [XnView] .AOB DVD Audio File (MPEG-2 program streams with additional info) .AOF Acorn Object Format (used for data storage) .AOS Nokia Add-on Software .AOT Novell snAppShot Application Binary Object Template File (differences between the "before" and "after" installation) .AP Applix Presents File Datalex EntryPoint 90 Data File WHAP-Compressed Amiga Archive .APA AlfaPad Organizer File ArcPad 6 Applet .APC Lotus Printer Driver Characters Centura Team Developer Compiled Application File AiroPeek File .APD Lotus Printer Driver Centura Team Developer Dynamic Application Library File .APE Monkey's Audio Lossless Audio Compression Format (supported by many different players) .APF Lotus Printer Driver Fonts ArcPad 5 Profile Acrobat Profile File Homesite Project File Fax2000 File MightyFax File (send and receive faxes) .API Lotus Printer Driver Info Photoshop Ink Colors Setup Application Program Interface Acrobat Plug-in 1st Reader Passed Parameter File .APIN Adobe InDesign Import/Export Filter .APJ Angel Debug Monitor Project File (link is PDF file) Music Screen Saver File (usually associated with .SCR file) ARM Project Manager File .APK GameSpy Arcade Service .APL Centura Team Developer Application Library File ArcPad 6 Layer APL Workspace File Monkey's Audio Image Link File (pointer to .APE file) .APM ArcPad 6 File .APO Apollo Scripts .APP R:Base, Symphony, DR-DOS, FoxPro (or other) Application Centura Team Developer Normal Mode Application File dBASE Application Object File ArcPad 5 Project SymbianOS Application CLARION for Windows Application Executable Application (under DR-DOS, NeXTstep, Atari) .APR Lotus Approach 97 File ArcView Project File (GIS-related file) Employee Appraiser Performance Review File MicroSim PCBoard Aperture Information Report .APS Microsoft Visual C++ File ArcPad 5 Symbology File Advanced Patching Systems with Error Checking .APT Centura Team Developer Text Mode Application File Lotus Approach Data View File Nimbus 7 SAMS Data File (a-priori temperature profiles) .APX Lotus Approach Paradox-specific Information File Borland C++ Appexpert Database ArcPad 6 XML File Ability Photopaint Image [XnView] .AQ Applix Data .AQ1 AptiQuiz Test .AQA AptiQuiz Result .AR Compressed Archive File (used by Microsoft Midtown Madness 1 & 2 games) Midtown Madness City Add-on .ARA ATI Radeon Video Driver File .ARC Archive File Insight II Cartesian Coordinate Archive File .ARCHIMEDES Speccy Snapshot .ARE Infinity Game Engine Area Description [More Info] .ARF Automatic Response File AIM Resource File (AIM=AOL Instant Messenger) .ARG AutoCAD Profile Export File .ARH ArHymo Hydrologic Simulation .ARI Aristotle Audio File Compressed Archive .ARJ Compressed Archive (Stuffit can expand) .ARK Compressed Archive .ARL AOL Organizer File [AOL] .ARM Armadillo Software Protection System .ARN Astronomical Research Network [XnView] .ARPX8 Techno Toys Arp-X8 MIDI Arpeggiator File .ARQ Compressed Archive (often on a Macintosh) Remedy Action Request System Client Macro .ARR Atari Cubase Arrangement Remedy Action Request System Client Report .ARS Artifax Report Editor (SQL query tool) .ART Clip Art File Xara Studio Drawing Blood Archive [Dragon UnPACKer] Duke Nukem 3D Archive [Dragon UnPACKer] Canon Crayola Art File Another Ray Tracer Format AOL Johnson-Grace Compressed File [AOL] First Publisher Raster Graphic PFS: Art Publisher [XnView] Art Director Image [XnView] Artisan [XnView] Bernina Artista (sewing design) .ARV Arsiv File AutoRoute User Information .ARX Compressed Archive AutoCAD Runtime Extension File .ARY Compaq SmartStart Scripting Toolkit File .AS Applix Spreadsheet Macromedia Flash Action Script (include files when writing large scripts) .AS3 Alternate Sources Data File [Warning: Link goes to a sexually-oriented site.] APLPLUS II/386 and III/Windows Source Code .AS4 AS/400 Client Access .ASA Microsoft Visual InterDev File Active Server Document .ASC ASCII Text File [ASCII] PGP Armored Encrypted File [PGP] .ASCX Web User Control (part of Microsoft .NET) .ASD Microsoft Word Automatic Backup [Buy Office XP at Shop.Microsoft] Lotus Screen Driver Microsoft Advanced Streaming Format Description File Astound Presentation .ASE Velvet Studio Sample .ASF Microsoft Advanced Streaming Format (contains audio and/or video compressed with 3rd party codecs) [Media Player Formats] Statgraphics Data Lotus Screen Font APLPlus/PC APL Shared File Electronic Arts Music File .ASH TASM Assembler Header .ASI Borland Assembler Include .ASJ Aldfaer (Genealogic database program) (ASJ=Aldfaer SJabloon - sjabloon is dutch for template) .ASK askSam Database .ASL PhotoShop Layer Style .ASM Assembler Source Language (various) Pro/Engineer Assembly File .ASMX ASP.NET Webservices Source File .ASO Assembler Object Astound Dynamite Objects .ASP Active Server Page Procomm Plus ASPECT Program Astound Presentation File Photoshop Photo File Index Photoshop Separation Setup EROSION 3D Aspect File [Format (pdf)] .ASPI Audio Catalyst .ASPX ASP.NET Source File .ASR Ms Automap Route Photoshop Scratch Area .ASS Assembler/Disassembler 68HC11 File ASS I/O (programmers utility to pack multiple files into one file) .AST Astound Multimedia File Photoshop Separation Tables Claris Works Assistant File Technics Sx KN 6000 Keyboard All Custom Memory File .ASV DataCAD Autosave File Photoshop Selective Color .ASX Advanced Stream Redirector (points to an .ASF structured file) [Media Player Formats] Apparently you can also put the Microsoft Advanced Streaming Format into an .ASX file and play it with later versions. Cheyenne Backup Script Video File .AT2 Aldus Persuasion 2.0 Auto Template DCX-AT200 Motion Control Command Language File .AT3 DCX-AT3000 Motion Control Command Language File .ATF Photoshop Transfer Function Sharp APL Workspace Export File .ATG Netmino File (SW under development Oct 2002) .ATK Bitmap Image (Andrew Toolkit Raster Object file) [XnView] .ATL Hal/Supernova/Lunar/LunarPlus Screen Readers/Magnifiers PROGNOSIS Atlas Document File .ATM Adobe Type Manager Data File .ATN Adobe Photoshop Action File .ATO Just Burn File (audio CD burner on Compaq computers) .ATR Lightscape Material Library MicroSim PCBoard Attributes Report .ATS Attityd Swedish Survey Program Unrelated Inventions Audiotools Plug-in .ATT AT&T Group 4 Bitmap (fax) [XnView] ZipLip Secure E-mail (unverified) .ATW AnyTime Deluxe PIM File [PIM] Attityd Swedish Survey Program .ATX A ZIP-formatted Compressed Archive (Use any ZIP program to open) .AU Music File (various, usually Sun or UNIX) [IrfanView] [Linux Player] .AUD Audio File used by Westwood Studios for various games .AUP ePocrates File .AUS Agnitum Outpost Firewall Configuration .AUT AutoIt Script (automate any windows based task) PocketWear Car Lease Kit Vehicle Data File (Pocket PC) TLG Workplace CD Search File Xitami Webserver Admin Password File (default.aut) GPSMan-autoMapic File (moving-map real-time plotting) Signwave Auto-Illustrator File Descent Manager Mission File Authentication File (various) Interactive Pictures iPIX Format [Play with Quicktime with Internet Pictures Corp. iPIX Plugin v6.2 (CrossOver - npipx32.dll) or Netscape Plugin iPIX Viewer] .AUX TeX/LaTeX Auxilliary Reference File ChiWriter Auxilliary Dictionary File .AV Final Draft AV Document File .AVA Avagio Publication .AVB Inoculan Anti-Virus Virus Infected File Avid Bins File Microsoft Chat Character File .AVC Kaspersky Antivirus Toolkit File .AVD Avery Label Pro Data File .AVE ArcView Avenue Script .AVI Audio Video Interleave File [IrfanView] [DivX] .AVL ArcView Theme Legend File (GIS-related file) .AVP ArcView Pallet File (GIS-related file) Avid Project File .AVR Audio Visual Research Sound File .AVS Animation File Application Visualization System Format Stardent AVS X Image [XnView] Winamp Advanced Visualization Studio File Avid Settings File Avisynth File (scripting language and filters for non-linear video editing) .AVX ArcView Extension File (ODB format) (GIS-related file) Avid Extensions File .AW HP AdvanceWrite Text File Microsoft Answer Wizard File Applix Word File .AWB Lavasoft Ad-aware Backup File .AWD Faxviewer Document (AWD Microsoft Fax) [PolyView Viewer] Award BIOS File AWK Language Source Code File .AWE Adobe Acrobat Bookmark XML File .AWF Qui veut gagner des millions Archive [Dragon UnPACKer] Who wants to be a millionaire Archive [Dragon UnPACKer] .AWK AWK Script .AWM Animation Works Movie .AWP Akimbot Waypoint File (tells bots how to travel maps) .AWR Telsis Digital Audio File Ad-aware Referencefile (REFFILE.AWR) .AWS StatGraphics Data File .AWT AlbumWeb File .AWX Microsoft DirectX 8.1 .AX DirectShow Filter MPEG-4 DVD Filter (multimedia codec) [some filters work with Windows Media Player] .AXD Avery Label Pro Re-Index File Autodesk Actrix Technical 2000 File .AXE Paradigm C++ Integrated Debugger File ChordMaster (Chord Chemistry and Sequencing program for guitarists) Microsoft Autoroute Export File .AXG Microsoft Autoroute Trip File .AXL ArcIMS XML Project File [XML] .AXP GraphStore eCADLite File .AXR Telsis Digital Audio File ElcomSoft Advanced Archive Password Recovery .AXS MindAvenue AXEL Stream File .AXT ZenWorks snAPPshot ASCII Application Object Template Photoshop Replace Color/Color Range .AY AY Chip Sound File (chip used in ZX spectrum and other arcade machines) .AZ WinDVD File .AZZ AZZ Cardfile Personal Information Manager .B Limbo Implementation File (Inferno OS) Brainfck Program (small programming language) Befunge Program Grand Theft Auto 3 Save File Applause Batch List .B02 ADP Payroll (unverified) .B1 21st Century Mahjong .B16 PCO Graphic [XnView] .B1J BookJones .B1N 1st Reader Binary Screen Image .B1S BookSmith .B30 Ventura Publisher Printer Font .B3D 3D Builder File BDE Multipath Movie Digital Viewer .B4 Helix Nuts and Bolts File (Helix Software now part of McAfee) .B4S Winamp 3+ Playlist .B5S Numerical Controlled Machine File (Ball-bar?) .B64 Base 64 MIME-encoded File [MIME] (WinZip to access) .B8 Piclab Raw Graphic File .B&W Atari Black and White Graphics 1st Reader Mono Binary Screen Image Image Lab [XnView] .B_W Atari/Macintosh Black and White Graphic 1st Reader Mono Binary Screen Image Image Lab [XnView] .BAC Backup .BACKUP Ad-aware Referencefile Backup .BAD Rime Mailer Address File Oracle BAD File Brutus Application Definition File (password cracking) .BAF Infinity Game Engine Script [More Info] .BAG PMMail Mail Index File OS/2 Netfinity Manager Sysinfo File (adapter.bag) AOL Instant Messenger File Emperor: Battle for Dune Archive [Dragon UnPACKer] .BAH Infinity Game Engine File (Baldur's Gate 2 only) [More Info] .BAK Backup .BAL Ballade Music Score .BAM Infinity Game Engine Animation and Multi-frame Graphics [Edit with BAMWorkshop] [More Info] Zlib Compressed Infinity Game Engine Animation and Multi-frame Graphics (Baldur's Gate 2 only) [Edit with BAMWorkshop] [More Info] .BAN Sierra Print Artist Banner .BAR dBase Application Generator Horizontal Menu Object .BAS BASIC Language Source Basic Module .BAT Batch Processing (DOS Batch File) .BAV The Bat! E-mail Client Anti-Virus File .BB Papyrus Database Backup Blitz Basic File Starfleet Battles DOS Game .BB2 XBBS-OS/2, XGROUP, AV and ZTree Archiver Control File .BBC BBC BASIC File .BBL TeX/BibTeX Bibliographic Reference File .BBM Deluxe Paint Image File .BBMA Bonzibuddy .BBP BitBeamer Split File (of the form .??_??.bbp) .BBQ BitBeamer Transfer Queue File .BBS Bulletin Board System Text .BC Sierra Print Artist Business Card .BC3 Fiebdc-3 Format File (Format of Interchange ESTANDAR of Data bases of CONSTRUCTION) .BCC Calendar Creator 8 Collection .BCD Cosmi Business Card Maker .BCF ConfigSafe Snapshot Index The Sims (Maxis) 3D Body Mesh File .BCH dBase Application Generator Batch Process Object Datalex EntryPoint 90 Data File Phoenix Software (Datalex) Entry Point 90 Data File .BCK Backup .BCM Microsoft Works Communications File .BCN Business Card Pro Design .BCO Bitstream Fontware File MicroSim PCBoard Backward Engineering Change Order (layout-to-schematic) .BCP Borland C++ Makefile .BCS Infinity Game Engine Compiled Script [More Info] .BCT Clarion Backup Dictionary Business Card Designer Template .BCW Borland C++ 4.5 Environment Settings .BDB Microsoft Works Dababase File .BDE Borland Database Engine (embedded in many different programs) .BDF West Point Bridge Designer File Egret Data File X11 Bitmap Distribution Format Backup To CD-RW Backup Definition File Adobe Glyph Bitmap Distribution Format (ASCII version of .ABF) .BDG Badge Designer 2000 Photo ID .BDR Microsoft Publisher Border [Buy Office XP at Shop.Microsoft] .BDX BarBack Drink Exchange File FUSE Science Pipeline Bad Data File JavaBib Index File (contains file info for associated BibTeX file) (Also see .BIB) .BEC Break Even Calculator .BED InfoSnorkel Blue Elephant Definition (define content InfoSnorkel extracts from web page) .BEX BOOM Extensions To Dehacked British National Bibliography File (also see .LBL) Kashmir 3D Transparent Color Definition (INFO.BEX - ASCII file) .BEZ Bitstream Fontware File .BF Brainfck Program (small programming language) Befunge Program .BF2 Bradford 2 Font Bidfax 2000 SE Database (help to obtain bids on jobs that are subbed out) .BFA Blowfish-encrypted File (Extension added to original) [Program List] .BFC Briefcase File .BFF AIX? Backup File Format .BFFM B17 Flying Fortress Game File (link is to support page) .BFL Colin McRae Rally 2 Data File BFLI [XnView] .BFLI BFLI [XnView] .BFM UNIX Font Metrics File .BFR NI Observer Capture File .BFX BitFax Document BFX Bitware [XnView] .BG Microsoft Backgammon for Windows Game .BGA OS/2 Graphic Array [XnView] .BGB Microsoft Chat Background Graphic .BGI Borland Graphic Interface .BGL Flight Simulator Scenery File Babylon Glossary File .BGM Jane's Combat Simulations F-15 .BGV BonanzaGraf (Financial analyses/graphs) .BH BlackHole Archive Format File [ZipTV] .BHF pcAnywhere Host File .BHTML BabuHTML Embedded Software File (example use: netMailshar) .BHX Archive File .BI Binary File Progress Database Before Image File .BIB Bibliography Papyrus Database TeX/BibTeX Literature Database JavaBib BibTeX File .BIC Civilization III Scenario .BID BidMaker 2002 File (software to aid in making bids on jobs) .BIE JBIG File [XnView] .BIF GroupWise Initialization File Image Capture Board Binary Black & White Image Baldur's Gate Archive [Dragon UnPACKer] Planescape: Torment Archive [Dragon UnPACKer] Infinity Game Engine Archive of Resources (indexed by .KEY file) [More Info] .BIG Chinese (old version) Cartes Michelin [XnView] Fifa World Cup Game File .BIK BioCharter Profile Backup File Bink Game Video File .BIL ArcView Image File (band interleaved by line) .BIN Binary File (many) .BIO BioCharter Profile File OS/2 Bios File Infinity Game Engine Character Biography (Baldur's Gate 2 only) [More Info] .BIP ArcView Image File (band interleaved by pixel) .BIT X11 Bitmap Image Worms Armageddon Imported Map Worms World Party Imported Map .BIU BidMaker 2002 Update File (software to aid in making bids on jobs) .BIX Index to a .BIB BibTeX Bibliography Database BIX Archiver File (no longer produced) .BIZ Broderbund Print Shop Business Card File .BJF NTI Backup NOW! File .BK Backup LinguAssist File JetFax Faxbook File .BK! Backup (various) .BK$ Backup .BK? Backup (Can be 1 to 9, usually with WordPerfect) .BK1 Bach Preludes and Fugues MIDI akmi Source, Book 1 .BK2 Bach Preludes and Fugues MIDI akmi Source, Book 2 .BKC Collectorz.com Book Collector Database .BKF Moto Racer Archive [Dragon UnPACKer] Microsoft WindowsXP Backup Utility (Note: This is default; can be renamed to any extension.) .BKG Background File (used in many games/programs) UWXAFS Binary Format Data File (absorption data on an energy grid which does not need to be evenly spaced) .BKI Backup Index .BKP Backup .BKR Bruker Aspect NMR Data File .BKS Bookshelf Backup IBM BookManager Read Bookshelf Microsoft Works Spreadsheet Backup .BKU Timeslips Backup .BKW FontEdit Fontset Mirror Image .BLA Blat E-mail (command line E-mail tool written for Windows) Adobe Black Color Separation (also see .CYA, .MAG, .YEL) .BLB DreamWorks Resource Archive Glulx Game [Use Glulx Interpreter] .BLD BASIC Bload Graphics MegaPaint [XnView] VersaPro Block Build Info ACT! Contact Manager for Windows .BLEND Blender 3D File .BLG Windows Binary Performance Log (W-2000 & W-XP have different formats. To convert click.) MicroSim PCBoard Backward ECO Log File .BLK WordPerfect Temp File Lightscape Block Library Alias Wavefront Image Amiga IFF [XnView] VersaPro Block .BLL An extension used by the VBS/European-A worm. If found in the directory C:\STARTUP suspect you are infected with this worm and have your computer checked with anti-virus software! INPRISE Format Language Library (changed to .BTL) .BLT Wordperfect for DOS File Saved AIM Buddy List File .BLW ArcView World File For BIL Image .BLZ Bitmap Graphic Twinkle Bulbs Bulb File Emblaze.Creator File Blazon Heraldic Shield Serial Number File [IBM's Drive Fitness Test (DFT) program] .BM X Windows System Bitmap .BM1 Apogee BioMenace Data File .BM2 Subspace/Continuum Graphic (online games - .BM2 is renamed .BMP file) .BMB SLICS Bounding Box Information .BMF Corel Flow Image File (Binary Material Format) [XnView] .BMG Bert's Dinosaurs File .BMI Buzz Instrument Blue Martini Import File (eCRM) .BMK Help Bookmark BMC Software Patrol Icon File (ver 3.3+) .BML Bean Scripting Framework (BSF) File (Open with ASCII editor) .BMP Windows OS/2 Bitmap Graphics [IrfanView] Infinity Game Engine Palette Information (Standard graphic file with only one pixel plus color info) [More Info] .BMS Backup Magic Backup Set .BMU Music/Sound File [Open with Winamp or other MP3 player] .BMW Buzz Music File with Waves .BMX Buzz Music File Siemens Mobile Phone Animation .BMZ Demon Stalkers: Raid on Doomfane (old game) .BN AdLib Instrument Bank .BN7 Ox Object-Oriented Matrix Programming Language PcGive 7 Data File .BND Typequick File .BNG [Used by program RANGER.EXE] (Marshalling Yard Calculations) .BNK Adlib Instrument Bank SimCity Game File (reported to be) Bink Compressed Video/Audio File .BNL MicroSim PCBoard Netlist File For The Board Layout .BNR Binary News Reader File .BNSKIN Beatnik Clock Skin .BOB BobDown Downloading Program [Also see Antibob] Bob Raytracer [XnView] .BOL Microsoft Booasm Compressed Archive Library .BOM Orcad Schematic Capture Bill of Materials File Softshare Delta Business Object Model MicroSim PCBoard Bill of Materials .BOO Image File Book Compressed Archive File .BOOK Adobe FrameMaker Book .BOS Brotherhood of Steel Compressed File (renamed ZIP file; use any extractor) .BOT Frogbot Editor (Frog = Quake add-on computer opponent) .BOW Back Orifice 2K Workspace [this is a hacking tool] .BOX Notes Mailbox Lemmings Revolution Archive [Dragon UnPACKer] ThrottleBox Multimedia Viewer Aladdin Knowledge Systems Vbox Helper Application File (software distribution) .BOXR Boxerjam Interactive Game System .BPC Business Plan Toolkit Chart BuildPro File .BPG Borland Project Group (Delphi and C++ Builder) .BPK C++ Builder Package File .BPL Delphi Library Winamp 3 Playlist File AutoCAD R2000 Batch Plot List File .BPP MUSICMATCH Burner Plus Project .BPR Borland C++ Builder 6 Project BackupXpressPro Project File .BPS Microsoft Works Document Bulletproof FTP Settings .BPT Corel Bitmap Master File .BPW ArcView World File For BIP Or BMP Images .BPX Truevision Targa Bitmap [XnView] .BQW ArcView World File For BSQ Image .BQY BrioQuery File .BR Bridge Script The Playa File (link is tentative) .BR3 Bryce 3D Scene File (Bryce made by MetaCreations, changed to Viewpoint, product taken over by Corel) .BR4 Bryce 4 File (Bryce made by MetaCreations, changed to Viewpoint, product taken over by Corel) .BRC Bryce 2 Scene File (Bryce made by MetaCreations, changed to Viewpoint, product taken over by Corel) .BRD EAGLE Board File .BREP Boundary Representation File Format (CAD programs) .BRF Braille ASCII File [Info Site] .BRI Basic Rate Interface File FirstClass (manage messaging) .BRK Brooktrout Fax-Mail File [XnView] .BRO Tree Professional Broadleaf Creator File BR-532 Digital Studio (converts BR-532 tracks to/from .WAV files) .BRP Tree Professional Broadleaf Creator Image .BRS Corel Paint Classic File RoboHELP Browse Sequence .BRT Brooktrout Fax-Mail File [XnView] .BRU Brutus Restore File (password cracking) .BRW Application file associated with financial institution(s) loan applications (e.g., Calyx Point) .BRX Multimedia Browsing Index .BRZ DbBRZ File (Backup or Restore) .BS Printfox/Pagefox [XnView] Infinity Game Engine Compiled Script [More Info] .BS_ Microsoft Bookshelf Find Menu Shell Extension .BS1 Apogee Blake Stone Data File .BS2 Basic Stamp 2 Code File (WordPad or BS2-Editor) .BSA BSARC Compressed Archive .BSB SWAT Sub-basin Output File (river basin scale model) MapInfo Sea Chart .BSC Apple II Compressed Archive Source Browser Database Fortran Pwbrmake Object [FORTRAN] Boyan Script Microsoft Developer Studio Browser File .BSE CRiSP Harvest File .BSI BSPlayer Configuration File .BSK Bryce 4 File .BSL BSPlayer Configuration File .BSP Quake Map Half-life/TFC/CS Map .BSQ Oracle Control File (SQL.BSQ) Apple II BINSCII-encoded File (often produces a Shrinkit .SHK file) ArcView Image File (band sequential) .BST BibTeX Style File Star Trek: Birth of the Federation Structure/Ship Info File .BSU Brindys BriTray (software update) .BSV BASIC Bsave Graphics .BTAB Base Guitar Tabulature [On-line Guitar Archive] .BTF Brother Scanner File (supports multiple graphic pages in one file) .BTL INPRISE Format Language Library (changed from .BLL) .BTM 4DOS Batch To Memory Batch File [Note: Norton Utilities also uses 4DOS] .BTN ButtonWare File JustButtons Animated Bitmap [XnView] .BTO Baytex Organix! 2001 Language Kit .BTOA Binary-to-ASCII Format (encoding format similar to .UUE) [Tutorial] .BTR Btrieve Database File Microsoft Frontpage-related File [Buy Office XP at Shop.Microsoft] .BTS Creative Digital Blaster Digital VCR File .BTT ICQ Find Users File .BTX SEEDIS Index DB/TextWorks Database Term and Word Indexes .BUB Photobubble File [Play with Quicktime with Internet Pictures Corp. iPIX Plugin v6.2 (CrossOver - npipx32.dll) or Netscape Plugin iPIX Viewer] .BUD Quicken Backup .BUF WinXL File (Datascope emulation software) .BUG Bug (Problem) File .BUL Holiday Lights Screen Saver Bulb File .BUM Poser Bump [XnView] .BUN CakeWalk Audio Bundle File .BUP Backup DVD Info File PC-Bibliothek Update File CD Indexer Brother Embroidery System File Softcode Tracker Contact Manager Backup (Australian software no longer sold) .BUS Netmino File (SW under development Oct 2002) .BUT Buttons! Button Definition .BUY Movie Data File .BV? WordPerfect Overflow File (Can be 1 to 9) .BVH Biovision Motion File [Format] (Used by Poser and other software) .BVS BVS Solitaire Collection .BW SGI Black and White Image Silicon Graphics Raw RGB File [XnView] .BWB Visual Baler Spreadsheet File .BWI Blindread/Blindwrite .BWP Book Writer Project BeadWizard Pattern File .BWR Kermit Beware Bug List .BWS Blindread/Blindwrite .BWT Blindread/Blindwrite [Fantom CD Emulator] CDmage Table of Contents .BWV Business Wave File .BWZ WinImage Batch Configuration File (make disk images) .BXB BX-24 Basic Express Compiler Compiled Project .BXF Man's Best Friend Software Breeder Exchange Format .BXM BX-24 Basic Express Compiler Map .BXP BootXP File BX-24 Basic Express Compiler Module List .BXX blaxxun Contact .BYU Movie File (Shockwave) .BZ Bzip UNIX Compressed File (Open using WinRAR) .BZ2 Bzip 2 UNIX Compressed File (Replaces .BZ) (Open using WinRAR) .BZF Textures and Other Information (used by various games) .BZN Star Trek Armada Map File .C C Program File [Note: Some UNIX compilers use .c (lower case) for C and .C (upper case) for C++] Check Point Site Configuration for Secure Remote UNIX Compact File Achive Desktop Color Separation Specification Cyan Layer (usually an EPS file) ADS Source Code File .C?? Winace Compressed File (open with WinRAR) .C++ C++ Source Code .C-- Sphinx C-- Source .C00 Ventura Print File .C01 Typhoon Wave File (unverified - may just be one of a string of compressed files [see .C??]) .C08 Lord Of Destruction Game File (unverified - may just be one of a string of compressed files [see .C??]) .C2D IsoBuster File WinOnCd CD Image .C3D Chem3D Chemical File Cult3D Designer Intermediate File (interactive 3D objects) .C3T Chem3D Chemical Template File .C4 JEDMICS (Joint Engineering Data Management) DoD Engineering Data Format [For-pay Viewer] Edmics [XnView] .C4D Cinema 4D (3D Modeling texturing and animation program) .C6 Ashlar-Vellum File .C64 Commodore 64 Game ROM [Use CCS64 Emulator] .C86 C86 C Program .C-- Sphinx C-- Source code .CA Telnet Server Initial Cache Data File DATAIR FlexPlus Data File .CA1 OzWin CompuServe E-mail/Forum Access Catalog File STABCAL (stability calculation for aqueous systems) File .CA2 STABCAL (stability calculation for aqueous systems) File .CA4 Electronics Workbench Circuit STABCAL (stability calculation for aqueous systems) File .CA7 Beta 44 Job File STABCAL (stability calculation for aqueous systems) File .CAB Cabinet File (Microsoft installation archive) Install Shield v5.x or 6.x Compressed File (not compatible with Microsoft .CAB files) .CAC dBase IV Executable File .CAD Softdesk Drafix CAD File .CAF Southern Company Terrestrial Data Acq .CAG Microsoft Clip Gallery Catalog File .CAJ CAJViewer (Chinese reader similar to Adobe Acrobat Reader) (Chinese site) .CAL SuperCalc Worksheet Calendar File HTML Calendar Maker Pro DOS Calendar Creator File Cals Raster File [SwiftView] Radiance Function File Format CALS Raster [XnView] Microsoft Schedule Data .CALS CALS Raster [XnView] .CAM Casio QV Digital CAMera Image [XnView] [IrfanView] Camtasia Project/Producer Files (screen recording editor) .CAN Canon Navigator Fax [XnView] .CAP Ventura Caption Network Associates Sniffer Capture File Agilent LAN Analyzer Capture File Fluke Protocol Inspector Capture File Microsoft NetMon Capture File Shomiti Surveyor Capture File Sun Snoop Capture File TTC FireBerd 500 PC Capture File WWG Domino Capture File WWG LinkView PRO Capture File Telix Session Capture Compressed Music File .CAPS Visimetrics Digital CCTV Recording (series of JPEG images) .CAR AtHome Assistant File Carrara Environment NeoBook Cartoon [XnView] Viper Racing Car Description File Insight II Cartesian Coordinate File .CAS Comma-delimited ASCII File i2's Case Notebook Timeline Analysis Casio Program Cascade DTP File (desktop publishing for browsers using CSS technology) .CAT dBase Catalog Microsoft Security Catalog (distributed with drivers and updates to assure file integrity) Todd Osborne Directory Catalog Quicken IntelliCharge Categorization File Cognos Impromptu Database Report OzWin CompuServe E-mail/Forum Access Catalog File Photomatrix PhotoStudio Graphic [XnView] .CATPART CATIA (integrated suite for product design) .CATPRODUCT CATIA (integrated suite for product design) .CAZ Computer Associates Archive .CB Microsoft Clean Boot File Crystal Button File Brief Macro Source Code .CB3 CliBench Mk III SMP 0.7.10 (measure system performance) .CBC CubiCalc Fuzzy Logic System File .CBF Calendar Builder File Infinity Game Engine Archive of Resources (indexed by .KEY file - Icewind Dale only) [More Info] .CBH ChessBase Chess Database File .CBI IBM Mainframe Column Binary Formatted File .CBK National Construction Estimator 32 Costbook .CBL COBOL Program (also see .COB) Contextual Browsing Language Viewer (usually JavaApplet) .CBM XLib Compiled Bitmap Fuzzy Bitmap [XnView] .CBP CentraBuilder File (web editing) [Expected availability Sep 2002] .CBS Cardbox Macro Script (database program) .CBT Computer Based Training .CBW Cardbox Workspace (database program) .CC C++ Program File Visual dBASE Custom Class File dB2K Custom Class File Picture Window's Color Curve File (ASCII text file) ADS Source Code File .CC1 Chem3D Cartesian Coordinates 1 Briggs Softworks Calendar Commander .CC2 Chem3D Cartesian Coordinates 2 ClubControl 2 (Internet cafe management/administration - Russian link) .CC5 Calendar Creator 5.x 6.x File .CCA CC:Mail Archive File Multimedia Fusion File (multimedia game creation - Clik N Create, The Games Factory can open some) .CCB Visual Basic Animated Button Configuration .CCC Microsoft Internet Chat Curtain Call Native Bitmap Graphic WordPerfect Office Calendar File (CALENDAR.CCC) .CCD CloneCd Related File [Fantom CD Emulator] Vector CAD Program File .CCE Calendar Creator 2 Event File .CCF OS/2 Multimedia Viewer Configuration File Symphony Communications Configuration File Remote Control File (various to include: ProtoProEdit, RAVedit) AudioReQuest Control File Hallmark Card Studio File .CCH Corel Chart Fabasoft Components PhotoModeler (Photogrammetry software) Forgotten Realms Unlimited Adventures (FRUA) Character Reference File [Fan Site] .CCL Intalk Communication Command Language .CCM Lotus CC:Mail Mailbox .CCN Vitalize! Game File [Played via IE plug-in] IMSI Multimedia Fusion Express File (Product dropped; was Click 'n Create game creation file) [Support site] .CCO CyberChat Data File XBTX BTX Graphics File MicroSim PCBoard Autorouter Session Output .CCP C Converter Profiles (construction site management) CalComp Color Palette File .CCR Microsoft Internet Chat Room Shortcut .CCS CONKY CeZaR Stribas International .CCT Macromedia Director Shockwave Cast Logic Works Schematic File SIL Hebrew Font System Transliteration Table MicroSim PCBoard Design Information and Rules For Autorouting .CCX Corel Compressed Exchange File .CD cdTree Content List .CD1 DATAIR Cafeteria Document System Data File .CD2 DATAIR Cafeteria Document System Custom Text File .CDA CD Audio Track .CDB Turbo C Database Clipboard File One Page from a ROM With a View Project File CardScan Database Nokia 9210/9290 Contact Database (Nokia runs Symbian) SymbianOS Contact Database File PowerDesigner Conceptual Model Backup File .CDBK SPSS Database File [PSPP Free Version Info] .CDC Chromeleon Driver Configuration Plugin Nero File (CD burning/design software) .CDD Chromeleon Device Driver Claris Draw v 1.2 Document Concept Draw (vector drawing for Macintosh and PC) .CDDA AIFF Audio File [Play with Quicktime] .CDE Honeywell Hybrid Control Designer (HC900-x Industrial Controllers) .CDF Comma Delimited Format Cyberspace Description Format Microsoft Channel Definition Format InstallShield Components Definition File NetCDF Graphic File MicroSim PCBoard Component Description File For Bill Of Materials .CDG DART Karaoke Studio CD+G File (contain only song lyrics and synchronization data) .CDI Phillips Compact Disk Interactive Format Disc Juggler File (CD-ROM data) .CDJ Disc Juggler File (CD-ROM data) .CDK Atari Calamus Document .CDKEY Protocol Used in Communicating from MediaRemote Server to PC MediaRemote Plug-in (ASCII text) .CDL CaseWare Working Papers Document Link SignLab Vector Graphic .CDM PowerDesigner Conceptual Model File Visual dBASE Custom Data Module Compressed Music Format (unverified) .CDO Cdo Navigator (Analyzes financial portfolios) .CDP CD/Spectrum Pro .CDQ CD Indexer .CDR Corel Vector Graphic Drawing [XnView] Raw Audio-CD Data Sound File [Linux Player] .CDS ChemDraw Stationery Document .CDT Corel Draw Template STABCAL (stability calculation for aqueous systems) File .CDU CDU Paint [XnView] .CDW CeledyDraw Image CADKEY Organized Dialog File .CDX Compound Index [File Structure] Corel Draw Compressed Drawing Microsoft Visual Foxpro Index Active Server Document ChemDraw Chemical Structure Microstation Cell Library Index .CDXL Old Amiga Movie Format .CDXML ChemDraw XML ChemDraw Format .CDZ ROM With a View Project File .CE FarSide Computer Calendar File Computer Eyes, Digital Vision [XnView] .CE1 Computer Eyes, Raw [XnView] .CE2 Computer Eyes, Raw [XnView] .CE3 Calendar Creator 3.x 4.x Event List .CEG Continuous Edge Graphic Tempra Show Bitmap Graphic or Edsun Continuous Edge Graphic .CEI CRiSP Harvest File .CEL Autodesk Animator Graphic CIMFast Event Language File Kiss Paper Doll File Microstation Cell Library Kiss Cel [XnView] Lumena CEL [XnView] .CEM Empire Earth Game File .CEN Master Tracker Financial Analysis .CER Certificate File Sierra Print Artist Certificate .CEV Software License Tracking Tool (CERTAUTH.CEV) LOUT Character Encoding File (High-Level Language For Document Formatting) .CEX The Currency Exchanger Rate File INMOS Transputer Development System Occam User Program ThumbsPlus File (Progressive Multi-image JPEG file) .CF Imake Configuration File Sendmail Configuration File [Other configuration files as well] .CF4 Catfish File Manager Support File .CFB Comptons Multimedia File .CFC Cold Fusion File .CFF Capabilities File for FOUNDATION(tm) Fieldbus H1 (31.25 kbit/s) .CFG Configuration (various) .CFH Capabilities File for FOUNDATION(tm) Fieldbus HSE (100 Mbit/s) .CFL Corel Flowchart File .CFM Corel FontMaster Cold Fusion Template File Visual dBASE Windows Customer Form .CFML Cold Fusion Markup Language .CFN Atari Calamus Font Data File .CFO TCU Turbo C Utilities C Form Object .CFP Complete Fax Portable Fax File .CFR IBM Configurator Report (if you don't have the program ask the sender to export to .RTF for you) .CFT Cumberland Family Tree .CFW ChemFinder Form .CFX Flow-Cal File (natural gas measurement) .CG3 Dungeons & Dragons Character File [Editor] .CGA Ventura CGA Screen Characters .CGI Common Gateway Interface Script .CGM Computer Graphics Metafile .CGP NetCaptor CaptorGroup .CH Clipper Header OS/2 Configuration File .CH3 Harvard Chart (Harvard Graphics taken over by Serif) .CH4 Charisma 4.0 Presentation .CHA Adobe Pagemaker Kerning Data .CHAT PIRCH98 Chat File .CHD Ares FontChameleon Font Descriptor ChartFX File .CHF pcAnywhere Remote Control File .CHI Chiwriter Document Help File Index (typically used when the Help file will stay on a CD-ROM -- .CHI speeds access to the info) .CHJ Help Composer Project .CHK CHKDSK/SCANDISK Output WordPerfect Temp File Sophos Intercheck File Starcraft Campaign Map .CHL Chromeleon Channel Raw Data Configuration History Log IE Channel Information .CHM Compiled HTML Help ChemDraw Chemical Structure (old format) .CHN Ethnograph Data File .CHO Hash Animation:Master Choreography .CHP Ventura Publisher Chapter .CHQ Help Combined Full-text Search File (produced when multiple .CHM files are merged) .CHR Character or Font File Infinity Game Engine Exported Character Info [More Info] .CHS Corel WP Chart Style ATI Radeon Video Driver File .CHT Cheat Machine Data File ChartViewer dBase Interface File Harvard Graphics Vector File (Harvard Graphics taken over by Serif) ChartFX Template File Novagraph Chartist File (Flowcharting, Organization Charting) ZSNES Cheat Code (Super Nintendo emulator) ICQ Saved Chat Session Generations Family Tree Chart .CHU Infinity Game Engine GUI Elements File (list of windows and window controls) [More Info] .CI CitectSCADA File .CIF Ventura Chapter Information CalTech Intermediate Graphic Easy CD Creator Image pcAnywhere Caller File Ventura Converted Image File Colombo Ipermedia File Chip Layout Information Crystallographic Information File .CIG Fastback Plus Compressed Backup [Data Recovery Company] .CIL Clip Gallery Download Package .CIM SimCity 2000 File CompuApps Drive Backup Image CIMEX Cimpack Design Drawing File .CIN OS/2 Change Control File Cinetitler Digital Screen Subtitling Kodak Cineon [XnView] .CIP Ghost Keylogger File .CIR SuperMax E-CAD Save-File Command PSpice File Flash Color Table .CIS CheckInbox File .CIT Intergraph Scanned Image [XnView] .CIV Empire Earth Custom Civilization Information .CIX TCU Turbo C Utilities Database Index .CK1 iD/Apogee Commander Keen 1 Data File (.CK1 to .CK6) .CKB Borland C++ Keyboard Mapping File .CKD CADKEY GraphX File Format (ver 2 and above) .CKP Ingres Checkpoint File .CKT Crocodile Clips (Electronic design/physics) CADKEY Template File .CL Generic LISP Source Code .CL3 Easy CD Creator Layout File Bruker Aspect NMR Data File .CL4 Easy CD Creator Layout File .CL5 Easy CD Creator Layout File .CLA Java Class File (usually .CLASS but can be shortened) CLARION for DOS .CLASS Java Class File .CLB ICQ Contact List Microsoft Office XP Developer Code Librarian cdrLabel Compact Disc Label .CLD Skerryvore Software Simply Calenders .CLF ListPro File .CLG Disk Catalog Database Maxagrid CTM Log File (text format) .CLK Corel R.A.V.E. Animation File .CLL Crick Software Clicker File OzWin CompuServe E-mail/Forum Access Custom Library Search .CLN Backup Configuration Files (Clean files) [Used by some versions of Windows during install] SHL Calendar Utility (in Beta Oct 2002) .CLO Cloe Ray-Tracer [XnView] .CLOE Cloe Ray-Tracer [XnView] .CLP Windows Clipboard/Picture [IrfanView] Quattro Pro Clip Art CLIPS/wxCILPS File (C Language Integrated Production System) Clipper 5 Compiler Script PC Paint/Pictor Page [XnView] GoDot [XnView] .CLR WinEdit Colorization Word List 1st Reader Binary Color Screen Image PhotStyler Color Definition FileMaker Spelling Dictionary .CLS Visual Basic Class Module C++ Class Definition ArcView Geocoding Classification File .CLV Aladdin Knowledge Systems Vbox Current Language File (software distribution) .CLW Microsoft Visual C++ Class Wizard File CLARION Database (DOS & Windows) [CLARION Magazine] .CLX Macro ToolsWorks Macro .CM Craftman Data File .CM2 Curious Labs Poser Camera File .CM4 ClipMate Data File .CMA Applix TM1 Database File (text) .CMB Chromeleon Backup Archive .CMC PowerFront File (part of ShopMind) .CMD OS/2, WinNT Command File DOS CP/M Command File dBase II Program File 1st Reader External Command Menu .CMF Creative Music File Corel Metafile .CMG Chessmaster Saved Game .CMK Card Shop Plus File .CML Cheat Machine Library File (Windows) PADGen Company Info File .CMM CEnvi (ScriptEase:Desktop) Batch File .CMO Virtools Behavioral Server Composition .CMP Leadview (LEAD) Bitmap (Edit with WitchColor) Discorp CMP Image [XnView] Open Access File Address Document JPEG Bitmap CorelDRAW Postscript Printer Header Route 66 Address Document Microsoft Word for DOS User Dictionary Generic CADD Component File Technics Keyboard Composer File SWAT 3 Compressed Sound File [Support Site] .CMQ Culturemetrics (Personality Profile Analyser) .CMR MediaPlayer Movie CribMaster File (Toolcrib inventory management) .CMS TrialDirector Compound Media Storage (Litigation Exhibit Management) .CMT Culturemetrics (Personality Profile Analyser) Chinon ES-1000 Digital Camera [XnView] .CMU Carnegie Mellon Univeristy Stereo Raster Image CMU Window Manager [XnView] .CMV Corel Move Animation .CMW Microsoft Custom Maintenance Wizard File COM-Watch (data analyser) .CMX Corel PhotoPaint Image [XnView] Corel Presentation Exchange Image [XnView] The Sims (Maxis) 3D Body Mesh Data Apple Viewer File .CMYK Raw Cyan, Magenta, Yellow, and Black Samples .CNC CNC General Program Data Click 'n Create File .CND ControlDraw File Embroidery Design File [possibly read with Melco Sizer Software] .CNF Configuration (various) SpeedDial .CNM Windows Application Menu Options and Setup File .CNQ Compuworks Design Shop File .CNR CRiSP Harvest File .CNREG EULANDA? Warenwirtschaft (ERP) Configuration Information .CNREP EULANDA? ERP System Report Template .CNS W2K Client Connection Manager Export File .CNT Help File Contents (and other contents needs) .CNV Microsoft Word Data Conversion File WS_FTP Pro Upload Conversion File Data WordPerfect Temporary File Canvas versions 6, 7, 8 .CO Cult3D ActiveX Player Application .COB COBOL Program File (also see .CBL) Caligari Truespace Format TrueSpace2 Object .COD Code List Compiler Program Code Multiplan Data File dBase Template Source File SWAT Input Control File (river basin scale model) FORTRAN Compiled Code [FORTRAN] Video Text File Charset Code File .COK Carmageddon Patch File .COL Autodesk Color Palette Multiplan Spreadsheet Lotus Notes Import Column Description File MS Movie Maker Collection File (WINDOWS MOVIE MAKER.COL) Grand Theft Auto 3 Collision Data .COM Command (Executable file) .COMMANDLINE Commandline Powertoy File .COMPAT Likely a text file (e.g., README.COMPAT) .CON Knowledgeware Consolidation File Tree Professional Conifer Creator File Simdir Configuration File Microsoft Train Simulator Train/Model Identification File (CONSIST file) .CONF IRC Related Configuration File (IRCDs or EggDrops) Linux Configuration File (also UNIX) .CONFIG Microsoft .NET Application Configuration Information CRiSP Harvest File .CONTENTSONCLIPBOARD Contents on Clipboard Powertoy File .COO Fabasoft Components .COP Tree Professional Conifer Creator Image File .COR Protein Structure File Web GPS Correction Server Export File WMOVIEC Input File Insight II Output Coordinate File .COS Scarlett Expert System Compiler Query File (Scarlett is not presently available) .COV Microsoft Fax Cover Page (Win2000/XP Cover Page Editor) [also see .CPE] .CP CompuMedic Database (medical billing software) .CP8 CP8 256 Gray Scale Image [XnView] .CPA Colasoft Capsa (network sniffer) .CPC CPC Lite Cartesian Perceptual Compressed File .CPD Fax Coversheet Corel PrintOffice File Complaints Desk Script .CPE Microsoft Fax Cover Sheet (Win95 Cover Page Editor) [also see .COV] .CPF Complete Fax File .CPG 3dize? Cool Page File .CPH Corel Print House Image .CPI Code Page Information ColorLab Image Calamus [XnView] .CPJ CeQuadrant CD Project Commotion File (compositing software tool) .CPL Control Panel Extension Corel Color Palette Compel Presentation .CPM Cisco Secure Policy Manager File InterComm Project Manager File ConceptHDL Project File CP/M Executable [Cpmtools 2.1] .CPN Age of Empires II Campaign File .CPO Corel Print House File .CPP Borland C++ Builder 6 CA-Cricket Presents Presentation Maya File .CPR Corel Presents Presentation Knowledge Access Graphics INMOS Transputer Development System Occam Program Code Fold PV-WAVE Compiled Procedure File (Visualization and analysis) .CPS Antivirus Checksum File Central Point PC Tools Backup Colored PostScript File Classroom Performance System File .CPT Macintosh Compressed File Corel Photo-Paint Image [XnView] [IrfanView] Jasc After Shot (Image Expert 2000 taken over by Jasc from SierraImaging) dBase Encrypted Memo CA Cricket Presents Template .CPT6 Corel Photo-Paint Image [IrfanView] .CPX Control Panel Applet Code Page Translation File CryptaPix Encrypted Image Corel Presentation Exchange Compressed Drawing .CPY Copy Books Data File Atari Ramdrive CPY Commands Flexus COBOL Definitions (function, element and value properties associated with a control) .CPZ COMPOZ Music Text .CQQ Cool Quiz (Quiz File) .CQZ Cool Quiz (Quiz File) .CR CRiSP Source Code Crack File (produced by several key generator programs) .CR2 Curious Labs Poser Character File .CR4 STABCAL (stability calculation for aqueous systems) File .CR5 Tripod Data Systmes Survey Pro Coordinate File (Surveyor data collection) .CR7 STABCAL (stability calculation for aqueous systems) File .CRA Personal Craft Factory File (no longer supported--GraphicCorp bought by Corel) .CRACKZBYMAB YaHoE File [crack site] .CRD Cardfile (Windows 3.x Database) Guitar Chord File [On-line Guitar Archive] (Usually an ASCII text file) ColdRED Script File (ASCII file parser) .CRE Infinity Game Engine Monster Description [More Info] .CRF Zortech C++ Cross-Reference File Database Cross-Reference File OM2Cipher Recipient File Sierra Print Artist Craft System Shock 2 Archive [Dragon UnPACKer] Thief 2: The Metal Age Archive [Dragon UnPACKer] Thief: The Dark Project Archive [Dragon UnPACKer] .CRG Calamus [XnView] .CRH Microsoft Golf Image File Links Games Course File .CRK Crack File (differences between original and cracked files) [Need proper version of CRK.EXE to open] .CRL Certificate Revocation List .CRM Capital Research Vendor Bid System Netmino File (SW under development Oct 2002) .CRP dBase Encrypted Database Visual dBASE Custom Report Corel Presents Run-Time Presentation .CRS WordPerfect 5.1 for Windows File Conversion Resource Links Games Course File Gold Game Course File .CRT Certificate File Oracle Terminal Settings Info UNIX Crontab File (not a required extension for Crontab) .CRU CRUSH Compressed Archive .CRW Canon Raw Format (Image) [XnView] [ACDSee 4.0] Crossword Genius (crossword & wordsearch puzzles) .CRX Links Games Course File .CRY Crypto Chat II Encrypted Notebook-content .CRZ Links Games Course File .CS C#.NET Source File .CSA Comma Deliminated Text Ultimate Ride Roller Coaster InterComm ASCII Sheet File .CSB Corel Photo-Paint Script CircuitSoft Viewer (a module of EMSI Complete) - (Unverified) .CSC Corel Script .CSD Bitstream Fontware File Chemsoft? MSDS Database File Embroidery Design File [possibly read with Melco Sizer Software] .CSF Van Dyke's CRT/SecureCRT Script File GeoMedia Coordinate System File .CSG Statistica Graph File .CSH Hamilton Labs C Shell Script File CARA-Script-Interpreter-Engine Script (4th generation database language) PhotoShop Custom Shape .CSHRC UNIX C Shell Environment File .CSI Cyberautograph Signed Item .CSK Claris Works .CSM Borland C++ Symbol File Borland C++ 4.5 Precompiled Header Kodak DC265 Camera Script .CSN Dreamweaver MX's Snippet .CSP PC Emcee On-Screen Image CaseWare Working Papers Script Page Intersystems Cach? Server Page File Crystal Enterprise Crystal Server Page (script language) .CSQ Foxpro Queries .CSS Hypertext Cascading Style Sheet Stats+ Datafile Statistica Datasheet InterComm Part Body Definition .CST Macromedia Director Cast File Technics Sx KN 6000 Keyboard Custom Style File .CSV Comma-Separated Variables CompuShow Adjusted EGA/VGA Palette .CSW WordPerfect Setup Info File .CT Scitex CT Handshake Bitmap [XnView] Iris CT Graphic [XnView] .CT0 Maxagrid CTM File Being Processed (text format) .CT1 Maxagrid CTM File Successfully Processed (text format) .CT2 Maxagrid CTM File Unsuccessfully Processed (text format) .CTB NoteTab Clipbar AutoCAD Color-dependent Plot Style Table .CTC PC Installer Control .CTD Cobra Track Dump (COmBined Reconstruction for Atlas) Cardtable File (text file) Marine Data File (e.g., automatic float data) Simpsons Cartoon Studio Export File .CTF TIFF Compressed File WhereIsIt Catalog Symphony Character Code Translation MGI PhotoSuite 1.0/8.0 Album File Calculator Text Format HP-95LX Character Translation File for Datacomm .CTG Cartridge Definition File ChessBase Opening Book Canon Powershot Pro 70 Info File BMC Software Patrol File .CTL Setup Information (various) User Control (various) .CTM FreeBSD Content Management File Java Charge Transaction Matrix File Crazytalk Talking Animation File Maxagrid CTM File (text format) SDR99 Speech Recognition Task Time Marked Conversation Input Content Delivery Service (Web site pending as of Feb 2002) .CTP American Greetings Greeting Cards ChemDraw Template .CTT MSN Messenger List of E-mail Contacts LabView File .CTX Compressed Text Visual Basic User Control Binary File Pretty Good Privacy (PGP) Ciphertext File Microsoft Online Course Text Microsoft Windows Terminal Server INI Backup File Chinese Character Input File .CTY SimCity City File Fog Creek CityDesk Template (Web publishing) .CUB OLAP Cube File (definition for SQL Server, any OLE DB, or ODBC-compliant database) .CUE Microsoft Cue Cards Data Description File for a CD-Image [Fireburner.com or Goldenhawk.com] or [Fantom CD Emulator] .CUF Turbo C Utilities Form Definition .CUL IconForge/ImageForge Cursor Library .CUP OzWin CompuServe E-mail/Forum Access Catalog Library Update .CUR Cursor Microangelo [IrfanView] .CURSOR Sun Icon/Cursor [XnView] .CURXPTHEME Cursor XP File (changes look & function of mouse cursor) .CUS AutoCAD Custom Dictionary File .CUT Dr. Halo Bitmap Graphic [XnView] INMOS Transputer Development System Occam Utility Package Utilitaires (multiple utilities) DataWave Physiological Data File .CUZ CropWalker (agriculture software) .CV Corel Versions Archive Microsoft CodeView Information .CV3 Civilization III Game High Score .CV4 Codeview Colors .CV5 Canvas version 5 .CVA Compaq Diagnostics .CVB Borland BDE File .CVF Microsoft Train Simulator Cab View File Compressed Volume File .CVG Image File .CVP WinFax Cover Page Portrait [XnView] .CVR WinFax Cover Sheet ElectraSoft Fax Cover Sheet .CVS Canvas Drawing File Outlook Express File Sound File [Linux Player] .CVT dBase Converted Database .CVW Codeview Colors .CW3 Crossword Construction Kit Puzzle Group Claris Works Win 3 Document (now Filemaker) Chem Draw Molecular Structure (Lewis structures, orbitals and lab apparatuses) .CWB WebNote Document .CWD StarDraft CWAD File (StarCraft Editor) .CWE Crossword Express .CWK Claris Works Data also see AppleWorks .CWP Cakewalk SONAR Audio Project .CWS Claris Works Template also see AppleWorks .CWW Crossword Weaver File .CWZ CropWalker File (Agricultural crop recording) .CXE Common XML Envelope .CXM XYZ-Company.com Proprietary File (transfer image and color information) QuadColor Color Correction Master .CXP XYZ-Company.com Proprietary File (transfer corrected color information) Core Media Player XML-based Playlist File .CXT Macromedia Director Protected Cast File Vegas Jackpot Gold Game Data File .CXX Zortech C++ Program .CYA Adobe Cyan Color Separation (also see .BLA, .MAG, .YEL) .CYN Cynex Root55 Program Extension .CYP Cypherus Encrypted Archive .D Dialect Source Code File D Programming Language Source Code File .D?? MicroSim PCBoard NC Drill Data File (?? is the page number within the job) .D_1 Polytext Ma'archot Meida Co. S"TaM ("Sifriyah Toranit M'muchshevet" - Computerized Torah Library) .D_3 Polytext Ma'archot Meida Co. S"TaM ("Sifriyah Toranit M'muchshevet" - Computerized Torah Library) .D$W MindStor Driver (digital wallet) .D00 Ganbatte! Winamp Plug-in AdLib Format File (WinAmp Plug-in) .D01 Ganbatte! Winamp Plug-in Note: .D00 and .D01 formats created by Jens-Christian Huus of the Vibrants and contains OPL2 music data. .D11 Macro Mania Data File .D2D 3D Fassade Plus 2D/3D Object File .D2I Diablo II Character Shadowmaster Diablo II LOD Character Editor .D2S Diablo II Character and Equipment File .D2V DVD Ripper File .D3D CorelDream 3D File Direct3D File .D3F Microsoft MechCommander 2 Encyclopedia .D64 Commodore 64 Game ROM [Use CCS64 Emulator] .D8A AmBiz Productivity Pak Catalog .DA? Star Trek Generations Saved Games (?=0 to 9 with .DA9 being autosave and .DA0-.DA8 nine numbered slots) .DAD Chromeleon Channel Raw Data .DAF OM2 911 Xchange Version 3 & 6 Document Pelesoft DAF [site under construction Sep 2002] (helps printing from DOS to printers) [ver 1.x multiple files of form PRN~ABCD.DAF, ver 2.x one CAPTURE.DAF, all hidden and temporary) .DAI DAIProcessor (DOCS Auto Import - input data file for add on products to Hummingbird DOCS Open) .DAN ATI Radeon Video Driver File .DAO Windows Registry Backup IsoBuster File .DAP Omnis5 Application File Microsoft Access Data Access Page [Buy Office XP at Shop.Microsoft] .DARBY TheWord & Bible Companion Darby's Bible Translation Bible .DAT Data (multiple programs) Note: RDXR020305.DAT is Morpheus adware. Kill this and others with Ad-aware. WordPerfect Merge Data (also possibly) MPEG File VCD and/or SVCD File [Help Site] (play with Media Player) Mitsubishi DJ-1000 and Photorun Native Format Gunlok Archive [Dragon UnPACKer] Nascar Racing Archive [Dragon UnPACKer] SPOT Graphic [XnView] SHARP MZ-series Emulator RAM-Disk File Unfinished FastTrack Download (used by FastTrack Clients, e.g. KaZaA, KaZaA Lite, Grokster) NeroCD Speed Results File .DAWN Experimental File Format (.DAWN) .DAZ Poser 3D File .DB Paradox Database Progress Database Solid Database WindowsXP Thumbnail Database (THUMBS.DB) ANSYS Database SmartWare Office Pac File (requires login) Oracle Database ArcView Object Database File (also ODB) .DB$ dBASE Temporary File Clarion Modula-2 Debug Info .DB2 dBase II File .DB3 dBASE III File .DBA DataEase Data File DarkBASIC File Palm DateBook File .DBB ANSYS Database Backup (simulates multiphysical interactions) Mopheus Music File .DBC Microsoft Visual Foxpro Database Container PROGNOSIS Database Collection Document File .DBD Clarion Modula-2 Debug Info Business Insight Data Oracle Record Type .DBE ActiveSync Backup File (Pocket PC backup) .DBF Database (multiple programs) [started as dBASE] [File Structure] Oracle 8.x Tablespace File ArcView Shapefile Attribute Table File (GIS-related file) JetForm FormFlow Data File (in \FORMS folder) .DBG Microsoft C++ Symbolic Debugging Info Oracle Generator File ArcView Problem Debug Log File .DBI Photo Soap2 File Borland Database Explorer Information .DBK dBase Database Backup Orcad Schematic Capture Backup File .DBL WindowsXP Product Activation File (if on WPA.DBL in the System32 folder) .DBM Cold Fusion Template DataBoss Menu Template DataEase Data File OzWin CompuServe E-mail/Forum Access SYSOP File .DBO dBase IV Compiled Program File DB/TextWorks Database Directory (into .DBR file) .DBOOK Pocket Diary Text .DBQ Paradox Memo AutoCAD DB Query File .DBR Comdial VMMI Database DB/TextWorks Database .DBS SQL Format Database Word Printer Description File DB/TextWorks Database Textbase Structure File GPS Data File (Trimble GPS) .DBT Database Text File [dBASE] [File Structure] Oracle Template Foxbase Memo AutoCAD R2000 DB Template File JetForm FormFlow Data File (in \FORMS folder) .DBV Flexfile Memo Field File .DBW DataBoss Database File .DBX Database (multiple programs) DataBeam Image Microsoft Visual Foxpro Table Microsoft Outlook Express E-mail Folder .DC DesignCAD CAD File .DC2 DesignCAD CAD File Kodak DC25 Digital Camera File DC2-PC Motion Control Command Language File .DC5 DataCAD Drawing File .DCA Visual Basic Active Designer Cache IBM DisplayWrite Document Content Architecture Text File D-PAS Portfolio Manager File [Education about D-PAS] .DCB Concordance Database Control Block .DCD Document Content Description File FORTRAN Data File [FORTRAN] INMOS Transputer Development System Occam Object Code Dynamic-CD-Wizard Project File .DCE AutoCAD R2000 Dialog Error Log File .DCF Design Rule for Camera File Systems File DynSite Configuration File Dyadic Data File Disk Image File HP-95LX Datacomm Configuration .DCL DumpSec DesignComposer Addition to Layout Knowledge Base AutoCAD Dialog Control Language Description File .DCLST DC and DC++ Direct Connect [File sharing network using DC++] .DCM DCM Module Format Digital Imaging and Communications in Medicine (DICOM) Image [XnView] .DCP Delphi Compiled Packages OS/2 Data CodePage ArcView Default Codepage File .DCR Shockwave File Kodak Proprietary Image Format .DCS Quark Desktop Color Separation Specification ACT! Activity Data File .DCT Dictionary (various) Microsoft Visual Foxpro Database Container ArcView Geocoding Dictionary File Delphi Component Template .DCU Delphi Compiled Unit .DCV DriveCrypt Volume .DCW Draft Choice for Windows .DCX FAX Image [IrfanView] ElectraSoft Fax PC-Paintbrush File [SwiftView] Bitmap Graphics [IrfanView] Macros Microsoft Visual Foxpro Database Container .DD Macintosh Compressed Disk Doubler Archive C64 Doodle [XnView] .DDB Device-Dependent Bitmap Graphics File Design Database File (database definition file) - (unverified as extension, may just be acronym) INMOS Transputer Development System Occam Debugging Info Protel 99SE Design Database File .DDATA Pocket Diary Text File .DDE Dynamic Data Exchange .DDF BTRIEVE Data Dictionary File (allows other programs to access data) Bitstream Fontware File Doom Definition File Music Library File Grand Theft Auto 3 File [GTA3 Forum] .DDI DiskDupe Image Disk Doubler Image .DDL Microsoft Data Definition Language File (SQL Server Query Analyzer) .DDM Intelliware Data Modeller (Data Mapping and Aliasing) .DDNA Miramar Systems Desktop DNA (migration tool) .DDP OS/2 Device Driver Profile File Delphi 6 File .DDS INMOS Transputer Development System Occam Compiler Descriptor Photoshop Compressed Textures .DDT Neurological Data for Statistical Analysis [File Format & More Info] Linux Configuration File .DDX Juno "Get" File Device Data Exchange Format File (text CAD design exchange format) .DDW CSPro File (combined IMPS and ISSA Census Processing System) Datadisc Data (Scientific graphing/analysis - Used in UK schools) .DE MetaProducts Download Express Incompletely Downloaded File .DEB DOS Debug Script Debian Linux Package .DEC VersaPro Declaration File ArcView UNIX Hyperhelp Supporting File .DEE Creator Simulation File .DEF Definitions Defaults SGML Tag Definition Modula-2 Definition Module File SmartWare II Data File C++ Definition 3D Fassade Plus Define Module File Geoworks Assembly Header File ArcView Defaults File (North Arrows, Layout Templates, etc) (ODB format) ADS Source Code File Bert's Dinosaurs File .DEH Dehacked File .DEI Gerber Design Engineered Interface .DEL Data Creator Simulation File .DEM ArcView Digital Elevation Model File Delphi Edit Mask Descent Demonstration USGS Map Digital Elevation Model File (GIS-related file) Half-life Game File Creator Simulation Temp File .DEO Creator Simulation File .DEP Setup Wizard Dependency .DEPLOY DeployMaster Setup Script .DER Certificate File .DES Description Text Tribes 2 Game File Quickbooks Template Pro/DESKTOP File Interscope BlackBox File (encryption program) Creator Simulation File .DESK Card Deck File .DESKLINK Microsoft Windows Explorer Desktop Controls Desklink Powertoy File .DET ACT! Saved E-mail File (sometimes associated with .UNQ saved unknown attachment) .DEU ATI Radeon Video Driver File .DEV Device Driver Device Independent TeX LaTeX File .DEX WinGlucofacts File (diabetes management software) .DEZ DES Encrypted Zip File .DF Lightscape Parameters Paradox Table Filter .DF1 Omnis7 and Omnis Studio Database File (also .DF2, .DF3, etc.) .DFA Amateur Strip Poker Data File (NOTE: Site opens with barely-clad ladies) .DFC Voicemail File (Trio Voice Communications and maybe others) .DFCLASS Together ControlCenter Development Tool .DFCOMPONENT Together ControlCenter Development Tool .DFD File Flow Diagram Graphic .DFF Digital Animation Format Grand Theft Auto 3 Export Format [Model Editing] .DFI Digifont Outline Font Description .DFL Signature Default Program Settings .DFM Borland C++ Builder 6 Form Delphi Form Datafax Image File Flow Diagram Model .DFN Winyaps Style DFNWarrior Itemlist Definition File (various and often ASCII) TalkAssist Icon String Meaning Integrated Translation Environment (one for each Delphi or C++ form [.DFM]) .DFP Stabilogram Diffusion Analysis File (Requires MatLab) Digital Fusion Plug-in .DFPACKAGE Together ControlCenter Development Tool .DFS Delight Sound File AutoCAD Utility Defaults File .DFSEQUENCE Together ControlCenter Development Tool .DFT Fakt2000 File SolidEdge CAD File Workshare Synergy File PC Draft File .DFV Word Print Format Template [Buy Office XP at Shop.Microsoft] GYYR DVMS Digital CCTV Recording .DFWEBAPPLICATION Together ControlCenter Development Tool .DFX AutoCAD Vector Graphics File .DG Autotrol Graphics .DGC TurboTax-related File IBM DataGLANce Capture File .DGK Delcam Powershape/Powermill (3D CAD) .DGN Microstation CAD Drawing File Intergraph Graphics Dragon 32 Emulator Bentley, MicroStation, CAD ArcView Design Drawing File (Intergraph) .DGO Dimitrius Settings File (Dimitrius is program author) .DGR Fax Page (Microsoft Outlook Express) DART Pro 98 File Group Details Keeptool ER Diagrammer .DGS AT Advanced Diagnostics File .DGT Digital Gallery (Web photo gallery creator) [In development Oct 2002] .DH Geoworks Dependency Information File .DHE Microsoft Help Workshop Dialog Box Help Editor Document .DHP Dr. Halo PIC .DHT Gauss Data File Ox Object-Oriented Matrix Programming Language Gauss Data File .DIA Computer Support Corp Diagraph Graphics File DIA Drawing .DIB Device-Independent Bitmap Graphic (.BMP file without .BMP header) [IrfanView] .DIC Dictionary (various) .DICPROOF Dictionary Proofing File (CUSTOM.DICPROOF - Microsoft Office Programs using Proofing) .DIF Data Interchange Format DIFF Command Output (patch script) DVCPRO or DV Video File [Conversion software] .DIFF Difference File (used for patching software files) .DIG Text Document Digilink Format Sound Designer Audio File .DII Summation Blaze Load File (legal software) .DIL DesignComposer Input DIL Script .DIM AutoCAD Dimension File .DIN DataEase File ADC Labs eWave File (broadcast automation software) .DIP Graphics File .DIR Procomm Plus Dialing Directory Macromedia Director File DEC VAX Directory Worms Armageddon Archive [Dragon UnPACKer] ArcView INFO Directory Manager File .DIS DKB Ray Tracer File [XnView] DATAIR Data Import Specification Layout File VAX Mail Distribution File Corel Draw Thesaurus .DISCO Microsoft .NET Web Service Discovery File .DIT Microsoft Win2000 Active Directory Schema .DIVX Movie Encoded with DivX-codec .DIZ Description In Zip File .DJE MattBatt iAM-player .DJV DjVu File [XnView] .DJVU DjVu File [XnView] .DKB DKBTrace Ray-Traced Graphics File .DKT DktBot File (Robot for IRC; runs with MIRC32.EXE) .DKZ Description In Zip File (Danish Version) .DL Animation File (this appears to be associated with glifomon.zip, a probable porno file) Masked .DLL File (often used by malware to hide .DLL files from virus scanners [e.g., Sub7]) .DL_ Compressed .DLL File in an Install Archive The Land Of UM .DL4 Lindab Dimsilencer File .DLC Echelon HQ Configuration File Model Dislocation File 3D Studio Max Animation Controller File (Character Studio) .DLD Lotus File .DLE Macromedia Designer 3D Translator File (Also 3D Studio Max) .DLF Belkin Router Firmware Update .DLG Dialog Resource Script C++ Dialogue Script Infinity Engine Game Dialog File Digital Line Graph (U.S. Geological Survey geographic database) MicroSim PCBoard NC Drill Descriptive File ArcView Digital Line Graph File Infinity Game Engine Inter-Character Dialog [More Info] .DLK INMOS Transputer Development System Occam Compiler Link Info .DLL Dynamic Link Library CorelDraw Export/Import Filter .DLM Dirty Little Helper Cheat File Dynamic Link Module ASCII Delimited File (sometimes used in voting systems) 3D Studio Max Character Studio .DLS Downloadable Sounds (Interactive Music Architecture) Norton DiskLock Setup File ADAPTA DLS/32 Supply Chain Planning (ASCII file with general number data) dataLive Database Engine File .DLU Dirty Little Helper Update File .DLV CATIA Export File [Dassault Systems] [IBM] .DM2 Quake 2 Demo File [Viewer] .DM3 Quake 3 Arena Demo File [Viewer] .DM_48 Quake 3 Arena Demo File [Viewer] .DM_57 Return to Castle Wolfenstein Demo File [Download site] .DM_59 Return to Castle Wolfenstein Demo File [Download site] .DM_66 Quake 3 Arena Demo File [Viewer] .DM_67 Quake 3 Arena Demo File [Viewer] .DMC Medical Manager DML System Compiled Script .DMD Visual dBASE Data Module dB2K/dQuery Web DataModule OS/2 Warp Device Manager Driver .DME Medical Manager DML System Data Merge .DMF Delusion/XTracker Digital Music File Packed Amiga Disk Image .DMG Macintosh OS X Disk Image File (Treated like a real disk) .DMK Digimask File (3D human faces) .DML Darn! Shopping! Mall File Medical Manager DML System Script .DMO Derive Demo The Land Of UM Demo File (possibly other game demos) .DMP Dump (various) INMOS Transputer Development System Occam Core Dump Precision Guesswork LANWatch Capture File .DMS Amiga DISKMASHER Compressed Archive (see ADF) [Amiga Forever] .DMT Delcam Machining Triangles (3D CAD) Delphi Menu Template .DMX Medical Manager DML System Index for Custom .DME Files ProTrader Database .DN8 Blue Martini UTF-8 Encoded DNA File (eCRM) .DNA Blue Martini DNA File (eCRM) Desktop DNA Data Storage File .DNA.XML Blue Martini XDNA File (eCRM) .DNASYM Desktop DNA Compiled Application Script .DNAX Desktop DNA Exclusion List (ASCII file) .DNC Machine Tool Communications .DND ClustaW Tree File .DNE Darn v5+ (Windows) Events List Netica Bayes Net File .DNG Dungeon File (created by ID software) .DNI realMyst 3D Archive [Dragon UnPACKer] .DNL DigitalWebBook Electronic Book (requires installation of DigitalWebBook plug-in) netMod Modem Firmware Upgrade File .DNP DRM File [View with QuickTime or Microsoft Windows Media Services (CrossOver - npwmsdrm.dll) or Windows Multimedia Services DRM Store Plug-In] .DNS DynSite Plug-in File .DO Stata Batch Analysis File DigitalOutrage Hosting Control Panel Info MicroSim PCBoard File With Autorouting Control Information .DOB User Document Form File .DOC Document or Documentation (many programs/formats) Microsoft Word Document [Buy Office XP at Shop.Microsoft] DisplayWrite 4 File Mastercam Material Files (CAD/CAM) (usually in .\MILL6 folder) .DOCHTML Microsoft Word HTML Document [Buy Office XP at Shop.Microsoft] .DOCMHTML Microsoft Word HTML Document [Buy Office XP at Shop.Microsoft] .DOF Racer 3D Geometry File Delphi Option File .DOG Laughing Dog Screen Saver .DOH Geoworks Dependency Information File .DOL D-PAS Portfolio Manager Flexible Benchmarking Analysis File [Education about D-PAS] .DOO Atari Doodle [XnView] .DOP Digital Orchestrator File .DOQ Digital Orthophoto Quadrangle (digital aerial photo) .DOQQ Digital Orthophoto Quarter Quadrangle (smaller digital aerial photo) .DOS Text File/DOS Specification Info 1st Reader External Command File Network Driver File .DOT Microsoft Word Document Template [Buy Office XP at Shop.Microsoft] Corel Lines-Definition Bert's Dinosaurs File .DOTHTML Microsoft Word HTML Document Template [Buy Office XP at Shop.Microsoft] .DOX Text File MultiMate Document User Document Binary Form File .DOZ VENDINFO Description Out of Zip File .DP Daily Planner Calendar File DataPhile Data File .DPA Serif DrawPlus Animation .DPB Dataplore Signals (analysis of signals and time series data) .DPC DiscPlay Collection File Delphi Package Collection File OrCad Design Rule Check Output .DPD OmniServer File (OPC/DDE Server) .DPF COMPRESS Vessel Drafting Program File (AutoCAD add-in) DeltaDOS Delta Patch File F-Secure Configuration File (FSMA.DPF) Dataplore Figure (analysis of signals and time series data) Dictaphone Walkabout Express (unverified) .DPJ DeskProto CAM Project File .DPK Delphi Package File Lemon Interactive Starmageddon File .DPL Delphi Package Library Digital Photo Librarian Database .DPO Delphi Object Repository .DPP Serif DrawPlus Drawing .DPR Borland C++ (or Delphi) Default Project .DPS DivX XP Skin (.ZIP file format) DPS Reality Video Editing File .DPT Publish-It! Publication File Desktop DNA Template .DPX Digital Moving Picture Exchange [XnView] .DPY Realpolitik Saved Game PROGNOSIS Display Document File .DQA itaz doQument File .DQB D-PAS Portfolio Manager File [Education about D-PAS] .DQD itaz Default doQument Database .DQY Microsoft Excel ODBC Query File [Buy Office XP at Shop.Microsoft] .DR9 Directory File .DRA Dragon Naturally Speaking (Document with embedded speech) .DRB DrBeam (environment for modeling beams) .DRC Orcad Schematic Capture Design Rules Check Report File DriveCrypt Container File (Note: This extension was changed to .DCV due to a WinXP conflict.) Borland Delphi Compiled Resource File MicroSim PCBoard DRC Errors Report .DRES Diagnosis Results .DRF DrFrame (environment for modeling truss and frame structures) Hummingbird DOCS Open, PowerDOCS, DM (document management) .DRJ Deraj Data File .DRL DocObject Resource Locator .DRM Steinberg Cubase Drum File .DRN Darn for DOS .DRS WordPerfect Driver Resource Age of Empires 2 Archive [Dragon UnPACKer] .DRV Device Driver .DRW Drawing (various) Micrografx Vector Graphic Pro/E Drawing .DRX Adobe Photoshop Tutorial .DRZ Draz Paint [XnView] .DS Chemisty Software PhotoMax Drive HP Officejet T Series All-in-One TWAIN File Dialog Studio (mIRC related) .DS4 Micrografx Designer Graphics (ver 4) .DSA DasyTec DASYLab File .DSASAVE Microsoft Dungeon Siege File [View with Tankviewer] .DSB DasyTec DASYLab File .DSC Oracle Discard File Nikon Coolpix Disk Identification File dpkg-source (info needed help unpack Debian source archives) .DSCE Diagnosis Scenario .DSD DataShaper Database File Document Structure Definition File .DSES Diagnosis Session .DSF Micrografx Designer PC-TRUST Document Signer (Extension means file is signed) Delusion/XTracker Digital Sample Vicon Kollector 2.0 CCTV Recording (likely a wavelet format) .DSG Doom Saved Game .DSH Dashboard PDA Wallpaper .DSI Digital Sound Module Tracker Format (unverified) R-Studio Hard Disk Scan Results File .DSK Borland C++ or Delphi Project Desktop File Novell Driver File Lotus Notes Design Elements SHARP MZ-series Emulator File WinImage Disk Image File Apple II or Macintosh Game ROM [Use AppleWin (Apple II) or Basilisk II (Mac)] .DSL Lingvo User Feature Dictionary .DSM Delphi Symbol Module Digital Sound Module Tracker Format Dynamic Studio Music Module .DSMAP Microsoft Dungeon Siege File [View with Tankviewer] .DSN ODBC Data Source Microsoft OLE DB Provider for ODBC SureThing Office Labeler (formerly DesignExpress) Document Object System Designer Design Orcad Schematic Capture Schematic File CD Stomper Pro (CD/DVD Labels) (unverified) .DSO Tribes 2 Compiled Script .DSP Signature Display Parameters Dr. Halo Graphic Screen Driver Microsoft Developer Studio Project .DSPARTY Microsoft Dungeon Siege File [View with Tankviewer] .DSQ Corel QUERY File DASYLab Worksheet Sequence .DSQSAVE Microsoft Dungeon Siege File [View with Tankviewer] .DSR WordPerfect Driver Active Designer File .DSRES Microsoft Dungeon Siege Texture File [View with Tankviewer] .DSS Digital Soup Digital Sound File DCC Active Designer File Digital Speech Standard File (Voice Recorders & IBM's ViaVoice) .DSSAVE Microsoft Dungeon Siege File [View with Tankviewer] .DSST ConsumerPoint File (CACR Marketing) .DST PC-RDist Distribution File Embroidery Machine Stitch File (VeePro) Home Embroidery Format (Catalog using Designer's Gallery Studio) Borland Desktop Settings (C++ and Delphi) .DSW Microsoft Developer Studio Workspace Borland C++ Desktop Settings .DSX Active Designer Binary File .DSY PC Draft Symbol Library .DSZ Embroidery Machine Stitch File (VeePro) .DT_ Macintosh Data File Fork .DT5 Brother's Keeper File (genealogy software) .DTA Data (Various) Stata Binary Saved Datasets Hidden & Dangerous Archive [Dragon UnPACKer] .DTB DesignTools PCB Design and Make (printed circuit design - common in UK schools) .DTD SGML Document Definition File DesignTools 2D Design (vector drawing - common in UK schools) ArcView UNIX Hyperhelp Supporting File .DTEA Diagnosis Template Archive .DTF Q&A Database Microsoft Exchange Header File (Used when sending to Lotus Notes) .DTI Delphi or C++ Design Time Information .DTL Hal/Supernova/Lunar/LunarPlus Screen Readers/Magnifiers .DTM DigiTrekker Module Softshare Delta Translation Map .DTP SecurDesk! Desktop Timeworks Publisher Text Document Publish-It! Publication Pressworks Template File .DTQ Database Tools Query .DTS Digital Surround Audio File Format Microsoft Data Transformation Services (Data Transformation Packages used by Microsoft SQL Server) .DTX LaTeX Source and Documentation Archive E-Book File DocuTech Print6 Engine File (Prints DocuTech Closing Documents) LithTech Model Texture File .DUF Beckman Instrument's Spectrophotometer Data Archive .DUN Dial-Up Networking Export File .DUP Duplicate Backup .DUS Readiris Font Dictionary .DV DESQview Script Digital Video File .DVB Visual Basic for Applications Macro Project .DVC Lotus File .DVF DV Studio Camcorder Graphics File .DVI TeX Device Independent Document .DVP DESQview Program Information AutoCAD Device Parameter .DVR Device Driver .DVSD DVMaster Pro Video [Conversion software] .DVU DVBControl (recorded video or audio playlist) .DW David Whitaker Format Music File [DeliPlayer] .DW2 DesignCAD Drawing File .DWC Compressed Archive .DWD DiamondWare Digitized File Davka Writer File (Hebrew editor) .DWF Autodesk WHIP! Drawing Web File Microsoft WHIP autoCAD REader Drawing Web File .DWG AutoCAD Drawing Database Drafix Drawing BravoDRAFT, Detailer [Product taken over by EDS PLM Solutions] .DWI Dance With Intensity (dance simulator) .DWK Locked DWG File .DWN Cisco Download File (usually a system update) Firmware Update File (several) Experimental File Format (.DAWN) .DWP Dweep Game Levels DeScribe Document File .DWS Dyadic Workspace File AutoCAD Standartization File .DWT AutoCAD Template/Prototype File Macromedia Dreamweaver Template File Demon's World Game Texture File .DWY Dwyco Video Clip .DWZ Compressed AutoCAD Drawing File (decompress with AutoCAD or WinZip) .DX Document Imaging File Digital Electric Corporation (DEC) Data Exchange File Deus Ex File .DXB Drawing Interchange Binary .DXF AutoCAD Drawing Interchange Format .DXL Dapyx MP3 Explorer (MP3 database organizer) DOORS Extension Language .DXMAX Oozic File .DXN Fujitsu dexNet Fax Document .DXPACK DesktopX Object (customizes the Windows Desktop) .DXR Vegas Jackpot Gold Game File Macromedia Director Protected Movie File Dependable Strengths Administrator Resources (Macintosh) Green Building Advisor File AEC DesignWare Model Parameter File .DXS Deus Ex Saved Game .DXTHEME DesktopX Theme File (customizes the Windows Desktop) .DXX AutoCAD Drawing Interchange Attribute File .DVB AutoCAD VBA Source Code File .DYC ICUII Videochat File .DYLAN Dylan Source File .DYN Lotus File .DZ Dzip Compressed File .E Specman Testbench E-program Source File .E00 ArcInfo Coverage Export File (GIS-related text file) .E01 Encase Forensic Software .E2 thinkdesign CAD Design .E3 thinkdesign CAD Design .E48 Emu48 HP48 Emulator File .E78 IBM 3270 Terminal Emulator Screen Layout Definition .EAC EmEditor Auto Completion File .EAF Aframe File (suite of generic testing and assessment software) MicroEmacs Abbreviation File Format FRAGSTATSARC File (Landscape Structure/Spatial Pattern Analysis for ARC/INFO) .EAL Enfocus Action List .EAR Java Enterprise Application Packaging Unit .EAS Elite Visual Basic API Spy (Use care entering this site) .EASM eDrawings File (CAD program) .EAZ Express Assist File .EBF Pocket PC WindowsCE Form File EARS Definition Backup (EARS = UK Liberal Democrats Election Agents Record System) .EBJ Geoworks Error Checking Object File .EBK EARS Database Backup (EARS = UK Liberal Democrats Election Agents Record System) .EBM Attachmate Extra! Macro .EBO Microsoft Reader Ebook Format .EBP Pocket PC WindowsCE Project File .EBS WindowsXP Scanner File .EBX Electronic Book Exchange (Open Source) [Adobe reader] .ECA electroCAD File .ECC Ecchi Role-playing Format (Generally X-rated Anime File) [XnView] .ECD Questionnaire Specification Language File .ECF WinFax Office Add-in File Microsoft Outlook Add-in File .ECO NetManage ECCO File [Alternate site] .ECR Ecrypt E-mail File .ECS Encrypted Compressed GIS Software Geographic Shape File [GIS info] (ArcView, et.al.) (JShape/FShape) .ECW Ensoniq Waveset Format EclipseCrossword Crossword Puzzle Enhanced Compressed Wavelet [XnView] .ECW2002PUZZLE EclipseCrossword Puzzle .ECW2002WORDS EclipseCrossword Word List .ED EasyDraw CAD File (Japanese CAD program) .ED5 EDMICS Graphics File .ED6 EDMICS Graphics File .EDA Ensoniq ASR Disk Image .EDB ROOTS3 Geneological Data .EDC Kryptel (light) Decoder/Encoder .EDD FrameMaker Element Definition Document .EDE Ensoniq EPS Disk Image .EDF Workshare Synergy Document Change Management .EDH XEDH Electron-Density Histogram EditHelp Source File (Help Editor by Peter Balch) .EDK Ensoniq KT Disk Image .EDL Edit Decision List (management for video and film post production) .EDM CAD Contouring Parameter Data File Extinction Corrected Differential Photometry Setters III 3 Map File (prior to .MAP conversion) .EDML Dreamweaver MX Extension File .EDN EDIF Netlist File (Xilinx ISE FPGA Compiler) .EDP Attachmate Extra! Session .EDQ Ensoniq SQ1/SQ2/KS32 Disk Image .EDRW eDrawings File (CAD program) .EDS Ensoniq SQ80 Disk Image .EDT VAX Edt Default Settings .EDV Ensoniq VFX-SD Disk Image .EEB WordPerfect Equation Editor Button Bar EaseBook File (Word add-on for writing books and articles in XML) .EEP E3 Security Kit Plug-in (Evidence Eliminator) .EES Empire Earth Scenario File [SCN Punk Site] .EFA Ensoniq ASR File .EFC EFCoins File Technics Sx KN 6000 Keyboard Effect Memory File .EFD EARS Filter Definition (EARS = UK Liberal Democrats Election Agents Record System) .EFDEMO Star Trek Voyager Elite Force Demo File [Viewer] .EFE Ensoniq EPS File .EFF Infinity Game Engine Effects File [Edit with IEEP TeamBG File] [More Info] EverQuest Effects File .EFK Ensoniq KT File .EFQ Ensoniq SQ1/SQ2/KS32 File .EFS Ensoniq SQ80 File .EFT Chiwriter High Res Screen Characters .EFV Ensoniq VFX-SD File .EFX eFax.com Fax Document (Used to be JetFax in 1999) .EGA Ventura EGA Screen Characters .EGD GIS Software Encrypted Grid Shape File [GIS info] (ArcView, et.al.) (JShape/FShape) .EGG EGG Solution 360RealTour .EGP Easy Grade Pro Data .EGS GIS Software Encrypted Grid Shape File [GIS info] (ArcView, et.al.) (JShape/FShape) .EHTML Enhanced HTML .EI Electric Image [XnView] EARS Component File (EARS = UK Liberal Democrats Election Agents Record System) [Filename starts with E] .EID Faena MyID Encrypted File IBM ViaVoice Vocabulary File .EIDI Electric Image [XnView] .EK5 Simrad EK500 Scientific Echosounder Data [Use Echoview to analyze] .EK6 Simrad EK60 Scientific Echosounder Data [Use Echoview to analyze] .EKM EXP: The Scientific Word Processor Macro .EL eMacs Lisp Source Code .ELC eMacs Lisp Byte-compiled Source Code .ELD EARS Label Definition (EARS = UK Liberal Democrats Election Agents Record System) .ELETTERHEAD Electronic Letterhead .ELF Black Belt Systems Extended Layer File Tasklink for Windows Machine Control Executable and Linking Format Electronic Application Form File .ELG EARS Log (EARS = UK Liberal Democrats Election Agents Record System) .ELH Electronic Application Help File .ELI Encyclopedia Article List .ELL ATI Radeon Video Driver File .ELM Microsoft FrontPage Theme-Pack File [Buy Office XP at Shop.Microsoft] .ELOG McAffee Firewall Log .ELT Event List Text .ELZ Electronic Application Form Answer File .EM1 Emax I Bank File .EM2 Emax II Bank File .EMAIL Outlook Express Mail Message [Buy Office XP at Shop.Microsoft] (Rename to .EML to access in OE but beware of viruses and worms) .EMAT ANSYS Element Matrix (simulates multiphysical interactions) .EMB Everest Embedded Bank File IEMBL Nucleotide Format (MIME type chemical/x-embl-dl-nucleotide) .EMBL IEMBL Nucleotide Format (MIME type chemical/x-embl-dl-nucleotide) .EMD ABT Extended Module .EMF Extended Windows Metafile Format [IrfanView] .EML Microsoft Outlook Express Electronic Mail [Buy Office XP at Shop.Microsoft] Note: .EML files are used by other E-mail clients as well. Note: .EML files with "funny" names in multiple folders implies the Nimda worm. QuickMail Pro .EMM EARS Mail Merge Definition (EARS = UK Liberal Democrats Election Agents Record System) .EMP E-Music File Format .EMR Emrite (Wordprocessor file) .EMS PC Tools Enhanced Menu System Config YoshimuraEMS Motorcycle Fuel Injection .EMU Emulation .EMX Enigmacross Puzzle File (Develop professional acrostic puzzles) Emax System File .EMY Eericsson Ringtone .EMZ Windows Compressed Enhanced Metafile (Microsoft graphic format for Office and Visio) .ENC UUENCODE Encoded File Video File BlackIce Evidence Log File Knowledgeware Encyclopedia Encore Music File Dungeon Related File (created by ID software - tied to .DNG file) NAI Sniffer (DOS) Capture File .END Corel Arrow Definition .ENF RightClick-Encrypt File EndNote Filter File .ENG Dictionary Sprint Dictionary Engine File EnerGrahics Chart Graphics File Microsoft Train Simulator File .ENH CRiSP Harvest File .ENL Endnote Library File (for research papers) .ENR Enroute Toolath .ENS EndNote Styles File .ENT Entrust Entelligence Secured File .ENU ATI Radeon Video Driver File .ENV WordPerfect Environment WOPR Enveloper Macro Acrobat Spelling File Sierra Print Artist Envelope The Golem Project Environment File Motocross Madness 2 Track .ENW Sierra LandDesigner 3D Terrain Modeling .ENZ EndNote Connection File .EON EON Studio File (Interactive 3D authoring) .EOP EON Studio File (Interactive 3D authoring) .EOT Microsoft WEFT Embedded OpenType File .EOX EON Studio File (Interactive 3D authoring) .EOZ EON Studio File (Interactive 3D authoring) .EP Bonas Jaquard EP Weave Format File .EP2 EclipsePackager Package .EPA Award BIOS Logo [XnView] .EPD Express Publisher Publication File EARS Printer Definition (EARS = UK Liberal Democrats Election Agents Record System) .EPDF Encapsulated Portable Document Format .EPE EON Studio Personal Edition File (Interactive 3D authoring) .EPH NOAA Post-fit GPS Orbit Data .EPI Express Publisher Document File EclipsePackager Invoice Adobe Encapsulated PostScript Interchange Format [XnView] [Access with Ghostscript] .EPJ RapidSQL SCCS Project .EPL Tallyman E-commerce Software? .EPP EditPad Pro Project .EPR Eiffel Project Repository .EPRT eDrawings File (CAD program) .EPS Encapsulated PostScript [XnView] [IrfanView] Ventura Printer Font .EPS2 Adobe Level II Encapsulated PostScript [Access with Ghostscript] .EPS3 Adobe Level III Encapsulated PostScript [Access with Ghostscript] .EPSF Adobe Encapsulated PostScript [Access with Ghostscript] .EPSI Adobe Encapsulated PostScript Interchange Format [Access with Ghostscript] .EPT Elpoint Presentation File WITE32 File (Windows Integrated Test Environment) Adobe Encapsulated PostScript Interchange TIFF Preview [Access with Ghostscript] Clarion Embed Points File .EPZ EON Studio Personal Edition File (Interactive 3D authoring) .EQF Winamp2/Winamp3 Equalizer Settings File (may work with other players) .EQL DART Pro 98 Fabric Equalization Presets .EQN WordPerfect Equation HP-95LX Solver Equation File KaleidaGraph Macro File (scientific graphing) (Macintosh file type EQNS) .EQT ReliaSoft Weibull++ 6 (Life Data Analysis Software) .EQW SPEFO Stellar Spectra Analysis File .ER1 Visible Advantage / ERwin Interface File .ERD Entity Relationship Diagram .ERF Neverwinter Nights Toolset Exported Resource .ERI Entis Rasterized Image (ERI-chan) [XnView] .ERM Entity Relationship Diagram Model .ERP British Economics & Social Research Council Electronic Form NOAA Post-fit GPS Earth Rotation Parameters .ERR Error Log (various - many associated with install programs) .ERS EARS Control File (EARS = UK Liberal Democrats Election Agents Record System) Eraser (file deletion ["shredding"] program) .ERX ERWin File .ES EasySIGN Drawing Sheet .ESF Emblaze Audio File .ESH Extended Shell Batch File .ESI Esri Plot File .ESK ESK Document Reader .ESL Microsoft Visual FoxPro Distributable Support Library Everest Authoring System Screen Library (computer-based training) .ESM Enhanced Simplex [XnView] .ESP Ventura File ACD/CurveManager Analysis File Ethos System Analysis File ACD Analysis File (Advanced Chemistry Development) E$Planner File Morrowind: The Elder Scrolls [Format] Edskes Software Pakket .ESR 4D Database Windows Procedure .ESS EXP: The Scientific Word Processor Style Sheet .EST Microsoft Streets & Trips 2001 Trip File ICE 2000 File (Interactive Cost Estimating) .ESX Xactimate File (claims estimates) .ESY EmEditor Syntax File .ET2 Electronic Tax Return Security File (Australian taxes) .ETA eTreppid Audio File (eTplayer & ETVC media CODEC) .ETB Seismograph File (compressed?) .ETC eTreppid Compressed File Seismograph File .ETF Enriched Text File [Info] PolyEdit File .ETH Ethnograph Document File HP Internet Advisor (pre-Win95) Capture File .ETL Windows2000 Trace Log (performance monitoring) (TRACEDMP.EXE from Win2000 Resource Kit to create DUMPFILE.CSV for viewing by other applications) .ETM eTreppid Audio File (eTplayer & ETVC media CODEC) .ETV eTreppid Audio File (eTplayer & ETVC media CODEC) .ETX SetText Structure Enhanced Text .EUC Japanese (Kanji) .EUI Ensoniq EPS Family Compacted Disk Image .EUK Euklides Dynamic Geometry .EUM Euklides Dynamic Geometry .EUS EDonkey2000 Serverlist Tool .EV EchoView File (sonar fishing data) EV8 File (Virtual Reality applications) .EV2 Java File .EV3 EVERLOCK Options File .EV6 EV8 File (Virtual Reality applications) .EVA Viz Modeler 3D Scene Archive (used for TV graphics) .EVB Embedded Visual Basic File (used on Pocket PCs) [Developer info] .EVC EchoView Color Scheme (Echocolor-created data) .EVI EchoView Index File (speed up processing of echosounder data) .EVK EVERLOCK File .EVL EchoView Line File (echosounder time/depth coordinates) .EVO CRiSP Harvest File .EVR EchoView Region File (echosounder time/depth coordinates) .EVT PC Tools Event File Scheduler Microsoft WinNT/2000 Event Viewer Log File Cameo D1 Digital CCTV System Recording Event Log (JPEG files with associated .LOG files) .EVY Envoy Document .EWB Electronics Workbench .EWD Express Publisher for Windows Document .EWL Microsoft Encarta Document EclipseCrossword Word List .EWP QuickCog Project File Evidence Washer Plug-In (erases your Internet tracks) .EWS QuickCog Sample Set File .EX EPM Macro File (software install) Euphoria File (Programming language) .EX$ Compressed File (Try the Windows EXPAND command from Win95/98) Temporary File .EX2 PC Doctor File (HP computer - unverified) .EX3 Harvard Device Driver (Harvard Graphics taken over by Serif) .EX^ Norton Live Update File .EX_ Compressed .EXE File in an Install Archive .EXA Examine32 Saved Search Parameters (text search utility) .EXB Flash Image File .EXC QEMM Exclude File REXX Program Microsoft Word Exclusion Dictionary [Buy Office XP at Shop.Microsoft] Text Document .EXD Control Information Cache .EXE Executable File Out-of-process Code Component Used by COM Clients (Component Object Model) Settlers IV Saved Game .EXEME Likely an .EXE file - rename but be careful .EXF Fuji EXIF Format File (Any JPEG viewer should view) [File Format (PDF)] Calculus EZ-Fax Fax .EXM HP-95LX System Manager Executable File .EXP ICQ Saved Chat File Embroidery Design File [possibly read with Melco Sizer Software] CATIA Export File [Dassault Systems] [IBM] .EXT Norton Commander Extension File WS-FTP ASCII Binary Transfer File E-mail Text Attachment (unverified) Extinction Corrected Photometry .EXU Euphoria File (Programming language) .EXW Euphoria File (Programming language) .EXX IBM LinkWay MsgPut Intermediate File .EYB Encyclopedia Yearbook File .EYE Glass Eye File (stained glass window design) CubicEye Cube (3D organizer for Web) Eyeris Encoded Audio/Video File .EYP EasyFP (file encryption) .EZC EZScreen Screen Saver Editor .EZM Text File (From some mailing lists) .EZP Edify Electronic Workforce Backup Utility .EZS Sunburst Technology Easy Sheet Document .EZT Sunburst Technology Easy Sheet Template .EZX WHAP File .F Compressed Archive File (UNIX) FORTRAN Program Newing-Hall Computer Engraving Software Graphic .F&F Netmino File (SW under development Oct 2002) .F00 Kanji Font .F01 Perfect Fax Document .F06 DOS 6 Pixel Screen Font .F07 DOS 7 Pixel Screen Font .F08 DOS 8 Pixel Screen Font .F09 DOS 9 pixel Screen Font .F1 21st Century Mahjong .F10 DOS 10 Pixel Screen Font .F11 DOS 11 Pixel Screen Font .F12 DOS 12 Pixel Screen Font .F13 DOS 13 Pixel Screen Font .F14 DOS 14 Pixel Screen Font .F15 DOS 15 Pixel Screen Font .F16 DOS 16 Pixel Screen Font .F2 FLASH BIOS File .F2F File to File (encryption) .F2R Farandoyle Linear Module Format .F3 FLASH BIOS File .F3R Farandoyle Blocked Module Format .F32 Raw 32-bit IEEE Floating Point Values .F33 ANSYS Plot (simulates multiphysical interactions) .F64 Raw 64-bit IEEE Floating Point Values .F77 FORTRAN 77 Program .F90 FORTRAN Program .F96 Frecom FAX96 Document .FA EROSION 3D Flow Accumulation [Format (pdf)] .FA1 DATAIR FAS 87/132 Reporter Data File .FA2 DATAIR FAS 87/132 Reporter Custom text File .FAC Usenix FaceServer Graphic [XnView] .FACE Usenix FaceServer Graphic [XnView] .FAD Fast Atomic Density Evaluator File (FADE computes protein shapes) (PDF link) Data File (ASCII file usually associated with FAX programs) .FAM Maxis File (unverified) The Sims Family File FamicomS Nintendo Entertainment System Emulator ROM Image .FAQ Frequently Asked Questions .FAQT FAQTool XML Contents File .FAR Farandoyle Tracker Music Module The Sims (Maxis) Archive File [Dragon UnPACKer] .FAS 3D Fassade Plus Basic Module AutoCAD Fast-load Auto LISP File .FAV Microsoft Outlook Bar Shortcuts [Buy Office XP at Shop.Microsoft] Technics Sx KN 6000 Keyboard Favorites File .FAX Fax File (various - often TIFF format) [XnView] .FB5 FlowBiz Integrator File (Procedure documentation) .FBC FamilyTree Compressed Backup File .FBD F-22 Lightning Advanced Gravis Joystick Control File Remedy Change Management Flashboard DART Pro 98 User-definied Complex Restoration Filters The Quarterback Pro Coverage Worksheet Honeywell Control Builder File (UMC800 Controllers) .FBK Navison Financials Backup FamilyTree Backup File .FBM Fuzzy Bitmap [XnView] .FBN ArcView Spatial Index File For Read-Only Datasets .FBS File Burner Skin .FBX 3D Data Exchange Format ArcView Spatial Index File For Read-Only Datasets .FC Harvard Dictionary (Harvard Graphics taken over by Serif) .FC2 Curious Labs Poser Face File .FCB Forest Cover Attribute Processing File FAAST Builder File .FCD Virtual CD-ROM FastCAD/EasyCAD Output Patton & Patton Flow Charting 3 File IsoBuster File .FCF SHELXL93 File (created by LIST 4 command) [contains: h,k,l,Fc^2,Fo^2,sigma(Fo^2)] Altera MAX+PLUS II File HP-95LX Filer Configuration File .FCG Mystic Photo Format FastCGI Script .FCGI FastCGI Script .FCI EROSION 3D Inflow Table [Format (pdf)] .FCM Forward Compression Binary File Patch Fluke Networks CableManager File .FCP FLAMES Checkpoint Restart File .FCS Flow Cytometry Standard Format Fantasy Football League Organizer File RealProducer Pro Settings c-tree Server/Plus Data File Canon Zoom Browser EX File CD Trustee File Spectrum Server Log File .FCT Foxpro Catalog Campaign Cartographer 2 File .FCW Campaign Cartographer 2 File FastCAD File [Viewer] .FD FORTRAN Declarations [FORTRAN] Dataflex Field Compiler Offsets .FDB Navison Financials Database Legacy Family Tree Database Art Explosion Portfolio Catalog File .FDE Fade-It for AOL (text fading utility) .FDF Adobe Acrobat Forms Document Format Definition File (used by PC connectivity packages uploading to midrange systems) .FDI Amiga Disk File (using WinUAE 0.8.17 emulation software) (see ADF) [Amiga Forever] .FDL XYRO Active Distribution Console File Distribution List .FDM Floppy Disk Manager File [Software?] .FDR Final Draft Document File Embroidery Design File [possibly read with Melco Sizer Software] .FDS JetForm FormFlow Data File (in \FORMS folder) .FDW F3 Design and Mapping Document Form .FDX Force Index .FEB WordPerfect Figure Editor Button Bar .FEC U.S. Federal Campaign Expense Submission File [Also FILPAC] Ferite Programming Language File (http://www.ferite.org is listed but non working) .FEG Art Explosion Greeting Card Factory File (unverified) .FEM CADRE Finite Element Mesh File .FEP Microsoft WEFT Embedding Project .FEX Focus File .FF AGFA CompuGraphics Outline Font Description Sigmac Source File .FF2 Flash Filer (file format for ver 2.x) .FFA Microsoft Fast Find File .FFD Flash Filer (file format for to ver 1.57) .FFF GUS PnP Bank defFax Fax Document Maggi Hairstyles & Cosmetics [XnView] .FFL Microsoft Fast Find File PrintMaster Gold Image File Alien vs Predator Archive [Dragon UnPACKer] .FFO Microsoft Fast Find File .FFT DCA/FFT Final Form Text Microsoft Fast Find File .FFX Microsoft Fast Find File .FGA Folder Guard Attributes .FGD Folder Guard Data Half-life Modification Map Configuration File (also see .BSP) Digital Raster Graphic Metadata File .FGP Folder Guard Passwords File .FH3 Aldus Freehand 3 Drawing .FH4 Aldus Freehand 4 Drawing .FH5 Freehand 5 .FH6 Freehand 6 .FH7 Freehand 7 .FH8 Macromedia Freehand 8 .FH9 Macromedia Freehand 9 .FH10 Macromedia Freehand 10 [Tech note] .FHC Macromedia Freehand .FHIS Insight II Dynamics Trajectory History File .FI FORTRAN Interface File [FORTRAN] Flash Image [XnView] .FIC Windev Database System .FID Bruker Aspect NMR Data File .FIF Fractal Image Format FIF (Iterated System) [XnView] SpinRite Hard Disk Fingerprint File .FIG REND386/AVRIL Graphic Super Nintendo Game-console ROM Image [See ZNES or SNES9x] XFIG Graphic File (vector graphics) .FIL dBase Files List Object WordPerfect Overlay Application Generator File Template ACL For Windows Data File (data mining software) Cardbox Database File List (various) .FIM Construsyc/Instasyc File .FIN WordPerfect Print Format Text Perfect Writer Print Formatted Text ATI Radeon Video Driver File .FIO ULead Viewer Support File .FIP FingerPost Information Processor File (REMOTE.FIP is parameter file) .FIRE FireStarter Project File .FISH 3d Fish Tank Saved Fish .FISHES 3d Fish Tank Saved Fishes .FISHTANK 3d Fish Tank Saved Fishtank .FIT FITS Graphic (Flexible Image Transport System) [XnView] Microsoft Windows NT File Index Table .FITS FITS Graphic (Flexible Image Transport System) [XnView] .FIX Generic Patch File .FKY Foxpro Macro .FLA Macromedia Flash Movie Authoring File .FLAC Free Lossless Audio Codec (open-source lossless compressed audio format) .FLASK FlasKMPEG Language Definition File (ASCII text file) .FLB Papyrus Format Library VersaPro Folder Backup MicroSim PCBoard Footprint Library File .FLC AutoDesk FLIC Animated Picture [XnView] FLIC Video (may be same as above) .FLD Charisma Folder Hijaak Thumbnail Folder WinFlash Educator Flashcard Options/Statistics File VersaPro Folder Contents 3D Fassade Plus Field Define Module File .FLEX Flexi Data Smoothing (Contact for program) .FLF Corel Paradox Form OS/2 Driver File Navison Financials License File Firehand Lightning Graphic Collection .FLG MicroSim PCBoard Log Of Forward Engineering Change Orders Applied To The Layout .FLH FLIC Animation (DTA) .FLI Autodesk FLIC Animation [XnView] EmTeX Font Library .FLL Foxpro Library The Sims Floor File TextPipe Pro Filter (text file manipuation/editing) .FLM AutoCAD Film Medi@Show File "RealPixel" Animation File (various) .FLO MicroGrafx FlowCharter File .FLOOR Structural Concrete Software Floor Data File .FLP Fruityloops Saved File Floppy Disk Image File (use FDIMAGE.EXE to place on a diskette) Family Lawyer Saved Document GIFLine V1.0 (create animated GIF text filpboard - different from GIFLine Pro) FlipAlbum File [Viewer] .FLR Live3D File The Sims (Maxis) Floor Texture File .FLS Farrukh Imposition Purlisher Filelist Document WinFlash Educator Flashcard Source File ArcView Windows Help Supporting File .FLT Corel Graphic Filter StarTrekker Music Module MulitGen Open Flight File WinFlash Educator Flashcard Compiled Test File OS/2 Warp Filter Device Driver Asymetrix Graphics Filter Support File Micrografx Picture Publisher Filter FLIC Animation (DTA) Microsoft Graphics Filter FileMaker Filter CoolEdit Pro Filter [PAF filter] 123LogAnalyzer Filter File .FLUX pCode Flux (animation and authoring software) .FLX FLIC Animation (Tempra Pro, Mathematica, U-Lead, 3DStudio MAX) Dataflex Ordered Binder DataFlex Compiled Binary File .FLZ Medi@Show Data File WinFlash Educator Flashcard Compiled Study File .FM Adobe FrameMaker Document FileMaker Pro Spreadsheet .FM1 Lotus Spreadsheet File .FM3 Harvard Device Driver (Harvard Graphics taken over by Serif) 1-2-3 Format File FileMaker 3 Database Document .FMB WordPerfect File Manager Button Bar Oracle Binary Form Source Code .FMC NCAD File (woodworking CAD program) Embroidery Design File [possibly read with Melco Sizer Software] .FMD Open Access File .FMF IBM LinkWay Font or Icon .FMG FreeMarkets? Graphics Browser (ActiveX Viewer) .FMGEN FlexiMusic Generator .FMK PowerStation FORTRAN Make File [FORTRAN] FaxMaker File .FML GetRight File Mirror List Oracle Mirror List .FMMUS FlexiMusic Producer .FMO dBase Ordered Format .FMORC FlexiMusic Orchestra .FMP FileMaker Pro Document AutoCAD Font Map File .FMS Lotus 1-2-3 Impress Add-in (associated with .WK1 or .WK3 file) .FMT Format File Style Sheet Oracle Text Form Format dBASE IV Format File Microsoft Schedule+ Print File Microsoft Visual FoxPro Csreen Format File Cardbox Format File (database program) Ox Object-Oriented Matrix Programming Language Gauss Matrix File .FMV Frame Vector Metafile Full Motion Video File (may be renamed video file of another format) .FMX Oracle Executable Form .FMZ FormZ Project File .FMZIP FlexiMusic Zipper .FN3 Harvard Graphics Font (Harvard Graphics taken over by Serif) Denso BHT-7000 Terminal Executable Program File .FND Microsoft Explorer Saved Search .FNG Font Navigator Group File .FNK FunkTracker Module .FNO Folio Infobase [May be mistype of .NFO] .FNP FlashNpack (convert Flash Movies) [product in beta as of Feb 2002] .FNT Font File (Windows 3.1) .FNX Exact Inactive Font .FO1 Borland Turbo C Font .FO2 Borland Turbo C Font .FOB Navision Attain Object File .FOC FOCUS/WebFOCUS Database File .FOG Fontographer Font Computer Generated Forces for Action Fog Defaults .FOL 1st Reader Saved Message Folder .FOLDER Mail Folder .FON Font File Telix Dialing Directory Procomm Plus Call Log .FOO Kai's SuperGoo Fusion .FOR FORTRAN Source [FORTRAN] WindowBase Form .FOT Installed TrueType Font .FOUR VAX CRYSTALS Chemical Crystallogaphy File .FOW Family Origins File (Genealogy) .FOX FoxBase File .FP FileMaker Pro File FoxPro Configuration Info GoldMine Business Contact Manager Report CRiSP Harvest File .FP1 Flying Pigs for Windows Data .FP3 FileMaker Pro File Imsi FloorPlan 3D .FP5 FileMaker Database Design Report Template .FPA Franklin Potter Associates Business Invoice Designer .FPB FLAMES Playback File .FPC FoxPro Catalog File .FPD MicroSim PCBoard External ASCII Footprint Definition File (used for import and export) .FPF Canadian Flight Wizard (flight planning software) .FPG DIV Game Studio Multi Map [XnView] .FPHTML Microsoft FrontPage HTML Document .FPIX FlashPix Bitmap [IrfanView] .FPK JetForm FormFlow File (JetForm now Accelio) .FPR FLAMES Prototype File MicroSim PCBoard Footprint Statistics Report .FPS Operation Flashpoint Game File .FPT FileMaker Pro File FoxPro Memo Fields .FPW FloorPlan Plus Floorplan Drawing .FPWEB Microsoft FrontPage Disk Based Web .FPX FlashPix Bitmap [IrfanView] .FQF FlashFXP Queue File .FQY FLAMES (FLARE) Command File .FR3 dBase IV Renamed dBaseIII+ Form .FRA FrameViewer File .FRC FLAMES RECORD Output File / FLARE Input File .FRE Creative Digital Blaster Digital VCR File Male Normal CT [XnView] .FRF FontMonger Font .FRG dBase IV Uncompiled Report .FRK File holding Macintosh Resource Fork information (RESOURCE.FRK) File holding Macintosh Data Fork information (DATA.FRK) .FRL FormFlow File .FRM Form File FrameMaker Document FrameBuilder Document Oracle Executable Form Visual Basic Form dBASE IV Report File (and others) WordPerfect Merge Form DataCAD Symbol Report File Megalux Frame [XnView] MYOB Form File Insight II Free-Format Files .FRO dBase IV Compiled Report FormFlow File (and possibly other form programs) .FRP PerForm Pro Plus Form FaxRush Packages (listing of fax files - now .ZPK) .FRS WordPerfect Graphics Driver Fractal Explorer Formula Spot for Fractals .FRT FoxPro Report File .FRX Visual Basic Binary Form File FoxPro Report File .FRZ FormFlow File .FS NetBSD File (usually BOOT.FS) PDT Feature Structure File FormSaver File FlexiSIGN File .FSC Campaign Cartographer 2 File FLAMES Scenario File Worms Armageddon Fiddler File .FSF Convert It! Factor File fPrint Audit Tool File .FSH EA Sports Game Graphic Editor File Fifa World Cup Game File .FSI FileSplit .FSL Borland's Paradox 7 Forms Corel Paradox Saved Form .FSM Farandoyle Sample Format .FSR File Substring Replacement Utility .FSS Iomega Backup File Selection Set .FST FastStats Analyzer File dbFast Linkable Program FruityLoops Channel State File (replaced .404 in ver 2.5.0) .FSX Lotus 1-2-3 Data FormSaver Fields .FSY PhotoFantasy Image [XnView] FileSync (file/folder synchronisation utility) .FT Lotus Notes Full Text Index .FT7 Macromedia Freehand Drawing .FT8 Macromedia Freehand Drawing .FT9 Macromedia Freehand Drawing .FTB Roots3 Index File .FTG Windows Help Full-text Search Group File ArcView UNIX Help Supporting File .FTM Family File MicroGrafx Font .FTP FTP Configuration Information .FTS Windows Help Full-Text Search Index File Flexible Image Transport System [XnView] ArcView UNIX Help Supporting File Borland BDE File StateClock Export to STEP (to test the correctness of theorem) .FTV Forest & Trees File .FTW Family File FontTwister File (text effect generator) .FU F You Software Key Generator (Software protection breaker) .FUL Full Foram Count File .FUN Koolmoves File (Flash tool) .FUZZY Fuzzy Logic File .FVF Fluke View .FVML formVista (web application development environment) - Product in alpha Jul 2002 .FVPL Frozen Vertex Pair List File .FVS Forest Vegetation Simulator Tree Data File .FVT Interlock Public Computer Utility .FW Framework Database .FW2 Framework II File .FW3 Framework III File .FW4 Framework IV File .FWB FileWrangler Data File Backup .FWL FileWrangler EXE Library .FWP Worms Armageddon Fiddler Weapons Module .FWS FileWrangler Data File for File Splitting Configuration .FX FastLynx On-Line Guide WordPerfect Office Calendar File (CALENDAR.FX) WordPerfect Office Calendar Alarm File (CCALARM.FX) .FX2 WordPerfect Office Calendar File (CALENDAR.FX2) WordPerfect Office Calendar Alarm File (CCALARM.FX2) .FXD WinFax Sent Document (TIFF format) FAXit Phonebook .FXI File-Ex File .FXM WinFax & WinFax MiniViewer Fax BigFix .FXO Fax Image Document [Open with Quick view Plus] .FXP FoxPro Compiled Source Steinberg Plug-in Format (audio midi application) .FXR WinFax Received Document (TIFF format) .FXS WinFax Fax Transmit Graphic The Land Of UM .FXT Finale Music Notation Software Plug-in .FY Fontasy Publisher (early DOS font program) .FYI Flow-Cal File (natural gas operations) Fontasy Publisher (early DOS font program) .FZB Casio FZ-1 Bank Dump .FZF Casio FZ-1 Full Dump FontZip Font Packer .FZV Casio FZ-1 Voice Dump
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