| ARJ |
Robert Jung ARJ compressed archive (ARJ) |
| ARK |
ARC File Archiver CPM/Port archive |
| ARL |
AOL v4.0 organizer file |
| ARR |
Atari Cubase Arrangement |
| ART |
Xara Studio drawing |
| ART |
Canon Crayola art |
| ART |
Clip Art |
| ART |
Ray Tracer file |
| ART |
First Publisher Raster graphic |
| ART |
AOL Image file compressed using the Johnson-Grace compression algorithm |
| ARX |
ARX Compressed Archive |
| AS |
Applix Spreadsheet |
| ASA |
Microsoft Visual InterDev file |
| ASC |
ASCII text file |
| ASC |
PGP armored encrypted file |
| ASD |
WinWord AutoSave file |
| ASD |
Lotus 1-2-3 Screen driver |
| ASD |
Microsoft Advanced Streaming Format (ASF) description file; opens with NSREX |
| ASD |
Astound Presentation |
| ASE |
Velvet Studio Sample file |
| ASF |
Music file (Electronic Arts) |
| ASF |
Microsoft Advanced Streaming Format |
| ASF |
StratGraphics Datafile |
| ASF |
Lotus 1-2-3 Screen font |
| ASH |
TASM 3.0 Assembly language header |
| ASI |
Borland C++/Turbo C Assembler Include file |
| ASM |
Assembler Language source file |
| ASM |
Pro/E assembly file |
| ASO |
Astound Dynamite Object |
| ASP |
Active Server Page (an HTML file containing a Microsoft server-processed script) |
| ASP |
Procomm Plus setup and connection script |
| ASP |
Astound Presentation |
| AST |
Astound multimedia file |
| AST |
Claris Works "assistant" file |
| ASV |
DataCAD Autosave file |
| ASX |
Cheyenne Backup script |
| ASX |
Microsoft Advanced Streaming Redirector file |
| ASX |
Video file |
| AT2 |
Aldus Persuasion 2.0 Auto Template |
| ATM |
Adobe Type Manager data/info file |
| ATT |
AT&T Group 4 bitmap |
| ATW |
AnyTime Deluxe for Windows personal information manager file from Individual Software MultiModule screensaver |
| AU |
Sun/NeXT/DEC/UNIX sound file |
| AU |
Audio U-law (pronounced mu-law) |
| AUD |
Audio file (Westwood Studios) (Kyrandia 3,C&C,RedAlert,C&C:TS) |
| AUX |
TeX/LaTeX Auxilliary Reference file |
| AUX |
ChiWriter Auxilliary Dictionary file |
| AVA |
Avagio Publication |
| AVB |
Inculan Anti-Virus virus infected file |
| AVI |
Microsoft Audio Video Interleaved file for Windows movie |
| AVR |
Audio Visual Research file |
| AVS |
Application Visualization System file |
| AVS |
Stardent AVS-X Image |
| AVX |
File Extension (ArcView) |
| AW |
HP AdvanceWrite Text file |
| AW |
Applix Words file |
| AWD |
FaxView Document image |
| AWK |
AWK Script/Program |
| AWM |
Animation Works Movie |
| AWR |
Telsis file for digitally stored audio |
| AWS |
StatGraphics Data file |
| AXL |
ArcIMS XML project file |
| AXT |
ASCII application object template (ZenWorks snAPPshot) |
| AXX |
ARJ compressed file from a multi-volume archive (xx = a number from 01 to 99) |
| A3L |
Authorware 3.x library |
| A4L |
Authorware 4.x library |
| A5L |
Authorware 5.x library |
| A3M |
Authorware MacIntosh file (unpackaged) |
| A4M |
Authorware MacIntosh file (unpackaged) |
| A4P |
Authorware file (packaged without runtime) |
| A3W |
Authorware Windows file (unpackaged) |
| A4W |
Authorware Windows file (unpackaged) |
| A5W |
Authorware Windows file (unpackaged) |
