Data Formats and Their File Extensions -- A

Number Symbol A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Full List

.a Ada source code file .a Library (unix) .a11 Graphics AIIM image file .a2b A2B Player Playlist .a3d Amapi 3D Modeling file .a3m Unpackaged Authorware MacIntosh file .a3w Unpackaged Authorware Windows file .a4a Authorware 4.x Library .a4m Unpackaged Authorware MacIntosh file .a4p Authorware file packaged without runtime .a4w Unpackaged Authorware Windows file .a5w Unpackaged Authorware Windows file .aab Macromedia Authorware Binary .aac Advanced Audio Coding MPEG-2, MPEG-4 .aam Authorware shocked file .ab2 Parson's Address Book .ab6 Datafile (ABStat) .ab8 Datafile (ABStat) .aba Palm Address Book file .abc ABC FLOWCHARTER 1.x flowchart ABC2K Audio/Video Controller Software .abd AmBiz Bonus Calculator data file Adventure Builder database .abf Adobe Binary Font .abi ABI CODER Encryption software AOL extension: AOL 6 Organizer .abk Automatic backup file (CorelDRAW) .abm ImagePals Photo Album Document Montage Photo Album file PhotoPlus Album file .abs Abstracts (info file) Data file (Abscissa) MPEG audio sound file .abw AbiWord document .abx WordPerfect Address Book file .aby AOL file (located in AOL program directory) .ac3 AC3 Audio File Format .aca Microsoft Agent Character file Project (Project Manager Workbench) .acb Graphics (ACMB) .acc Program (DR-DOS - ViewMax) (GEM / resident) .acd Sonic Foundry Acid music file .ace Ace Archiver compressed file .acf Microsoft Agent Character file Adobe Photoshop Custom Filter .aci ACI Development Appraisal .acl Document file (Audit Command Language) ArborText Command Language .acm Audio Compression Manager Driver Photoshop command button Windows system file ACBM image file Interplay compressed Sound file .acs MS Agent Character file .act Actor source code file Foxdoc Action Diagrams (FoxPro) Presentation (Action!) .acv OS/2 Audio Drivers Photoshop Saved Curve .ad Screen saver data (AfterDark) .ada Ada source code file .adb Ada Package Body .adc Bitmap graphics (16 colors) (Scanstudio) .ade Microsoft Access Project .adf Adapter Description file Admin Config file Amiga Disk File Dog Creek QC Mask file .adi Graphics (AutoCAD) .adl Mca adapter description library (QEMM) .adm After Dark Screen Saver Module Windows Policy Template Addict Compiled Dictionary Administrative template files for protected mode in Internet Explorer 7.0 Advantage Data Server Database Memo file .adn Add-in (Lotus 1-2-3) .ado Photoshop Duotone Options Stata Program .adp FaxWorks Modem setup file Astound Dynamite file MS Access Project AOLserver Dynamic Page file .adr Address Book Address Plus Database After Dark Random Screen Saver Module Opera Web Browser Bookmark file Smart Address Address Book .ads Ada Package Specification .adt Datafile for cardfile application (HP NewWave) Fax (AdTech) .adx Document (Archetype Designer) .adz GZ-Packed Amiga Disk file .aeh iPer Advanced Embedded Hypertext .aex PGP Armored Extracted Public Encryption Key .af2 Flowchart (ABC FlowCharter 2.0) .aff AnyForm Form file .afi Truevision bitmap graphics .afl Font file (for Allways) (Lotus 1-2-3) .afm Type 1 font metric ASCII data for font installer (ATM - many) Datafile for cardfile application (HP NewWave) .aft AnyForm template file .agp Aspen Graphics Pages .agw Aspen Graphics Windows .ai Vector graphics (Adobe Illustrator) .aiff Audio interchange file format .ain Compressed file archive created by AIN .aio APL file transfer format file .air Automatic Image Registration .ais Array of Intensity Samples graphics (Xerox) .aix Datafile for cardfile application (HP NewWave) .ajp JPEG2000 Digital closed-circuit television (CCTV) security camera video format .alb JASC Image Commander Album Photo Soap2 file Steinberg Cubase or VST Backup Song file .albm webAlbum Photo Album HP Photosmart Photo Printing Album .all Format file for working pages (Always) General printer information (WordPerfect for Win) Symbol and font files (Arts & Letters) .als Alias Image Calmira Shortcut file .alt Menu file (WordPerfect Library) .alz ALZip Compressed file .amf Music (Advanced Module Format) .amg Compressed file archive created by AMGC System image file (Actor) .amp Photoshop Arbitrary Map Settings .amr Adaptive Multi-Rate ACELP Codec Above audio file extension .anc Animation file format (MorphInk) .ani Animation (Presidio - many) .anm Animation (Deluxe Paint Animator) .ann Help Annotations (Windows 3.x) .ans Ansi graphics (character animation) Ascii text ANSI character set (NewWave Write) .aos Add-On Software (Nokia 9000) ARCHOS 504 media .ap Compressed Amiga file archive created by WHAP Datafile (Datalex EntryPoint 90) Artwork Systems Program (ArtPro) .apc Printer driver (Lotus 1-2-3) .apd Printer driver (Lotus 1-2-3) .ape Music format (different players) .apf Printer driver (Lotus 1-2-3) .api Passed parameter file (1st Reader) Printer driver (Lotus 1-2-3) .apl APL work space format file .apm ArcPad 6 file .app Add-in application file (Symphony) Application object file (dBASE Application Generator) Executable application file (DR-DOS - NeXTstep - Atari) Generated application (FoxPro) .apr Employee performance review (Employee Appraiser) .aps MS Visual C++ file ArcPad 5 Symbology file .apx Appexpert database file (Borland C++ 4.5) .arc Compressed file archive created by ARC (arc602.exe/pk361.exe) Compressed file archive created by SQUASH (squash.arc) .arf Automatic Response file .arg AutoCAD Profile Export file .ari Compressed file archive created by ARI .arj Compressed file archive created by ARJ (arj241.exe) .arl AOL Organizer File .ark Arc file archive created by CP/M port of ARC file archiver Compressed file archive created by QUARK .arr Arrangement (Atari Cubase) .ars Adobe After Effects Render .art Graphics (scrapbook) (Art Import) Raster graphics (First Publisher) .arv Arsiv File AutoRoute User Information .arx Compressed file archive created by ARX .asa MS Visual InterDev file Active Server Document .asc Ascii text file Transport armor file (PGP) .ascx Microsoft ASP.NET user control file .asd Autosave file (Word for Windows) Presentation (Astound) Screen driver (Lotus 1-2-3) .asf Datafile (STATGRAPHICS) Screen font (Lotus 1-2-3) .ash Assembly language header file (TASM 3.0) .asi Assembler include file (Turbo C - Borland C++) .asl Adobe Photoshop Layer file .asm Assembly source code file Pro/Engineer Assembly file .asmx Microsoft .NET Web Service file .aso Assembler object (object orientated) file (Turbo Assembler) .asp Microsoft Active Server Page Aspect source code file (Procomm Plus) Association of Shareware Professionals OMBUDSMN.ASP notice .aspx Microsoft ASP.NET file .asr Ms Automap Route Photoshop Scratch Area .asx Microsoft Windows Media Active Stream Redirector file .asx Microsoft Advanced Streaming Format .at2 Auto template (Aldus Persuasion 2.0) .atm Adobe Type Manager data/info .atn Adobe Photoshop Action file .atr Lightscape Material Library .att AT&T Group 4 Bitmap .aty 3D Topicscape (Exported association type) .au Sound (audio) file (SUN Microsystems) .au3 Autoit3 script file .aud Audio file .aut AutoIt Script PocketWear Car Lease Kit vehicle data file TLG Workplace CD search file Xitami Webserver Admin Password file GPSMan-autoMapic file Signwave Auto-Illustrator file Descent Manager Mission file Authentication file (various) Interactive Pictures iPIX Format .aux Auxillary references (TeX/LaTeX) Auxiliary dictionary (ChiWriter) .ava Publication (Avagio) .avb Inoculan Anti-Virus virus infected file Microsoft Chat character file .avd Avery Label Pro Data file .avi Audio Video Interleaved animation file (Video for Windows) .avs Animation file Application Visualization System Format Stardent AVS-X image Winamp Advanced Visualization Studio file .avx ArcView file .aw Text file (HP AdvanceWrite) .awb Lavasoft Ad-aware backup file .awd AWD MS Fax Award BIOS file AWK Language Source Code file .awe Adobe Acrobat Bookmark XML file .awk Awk script/program .awm Movie (Animation Works) .awr Telsis Digital Audio file .aws Data (STATGRAPHICS) .ax DirectShow Filter .axd Avery Label Pro Re-Index file Actrix Technical file .axe Paradigm C++ Integrated Debugger file ChordMaster MS Autoroute export file .axg MS Autoroute Trip file .axl ArcIMS XML Project file .axs AMX Axcess control system file format HTML Active X script .axt ZenWorks snAPPshot ASCII Application Object template Photoshop Replace Color/Color Range .axx axxess files used as backups of Inter-Tel databases .azz AZZ Cardfile