| !bt | BitTorrent Incomplete Download File |
| !qb | qBittorrent Partial Download |
| !ut | uTorrent File |
| $$$ | General Temporary File |
| 0 | Linux Shared Library Link File |
| 2fs | Puppy Linux Save State File |
| 2gr | Windows VGA Graphics Driver |
| 3ac | ASTree Compiled Program |
| 3fs | Puppy Linux Save State File |
| 3gr | Windows VGA Graphics Driver |
| 3gx | Luma3DS 3GX Plug-in |
| 3tp | Triple-T Plugin |
| 4cx | 4D Database Carbonized Plug-in |
| 4dpx | 4D Database Mac OS X Plugin |
| 4fs | Puppy Linux Save State File |
| 73u | TI-73 Explorer OS Upgrade File |
| 86p | TI-86 Calculator Program |
| 89k | TI-89 Application |
| 8ba | Adobe Photoshop Plugin |
| 8bam | Adobe Photoshop for Mac Plugin |
| 8bc | Adobe Photoshop 5.0 Plugin |
| 8be | Adobe PhotoDeluxe Plug-in |
| 8bem | Adobe Photoshop for Mac Export Module |
| 8bf | Adobe Photoshop Filter Plugin |
| 8bfm | Adobe Photoshop for Mac Filter |
| 8bi | Adobe Photoshop Plugin |
| 8bif | Adobe Photoshop for Mac Format Plug-in |
| 8bim | Adobe Photoshop for Mac Plugin |
| 8bp | Adobe Photoshop Plugin |
| 8bs | Adobe Photoshop Selection Plug-in |
| 8bsm | Adobe Photoshop for Mac Selection Plug-in |
| 8bx | Adobe Photoshop Extension Plugin |
| 8bxm | Adobe Photoshop for Mac Accelerator Plug-in |
| 8by | Adobe PhotoDeluxe Plug-in |
| 8bym | Adobe Photoshop for Mac Parser Module |
| 8li | Adobe Photoshop Scripting Plugin |
| 8ly | Adobe Photoshop Plugin |
| 8xu | TI-83/84 Plus OS Upgrade |
| a21 | Soundweb Firmware Update |
| a2x | DragonDictate a2x Data |
| a8s | Anim8or Script |
| aad | Audible Download Plugin |
| aaxplugin | Avid Pro Tools Audio eXtension Plugin |
| abi | AbiWord Plug-in File |
| accda | Microsoft Access Add-in |
| aco | Adobe Photoshop Custom Swatch |
| acroplugin | Adobe Acrobat Plugin |
| acsauto | Avaya CMS Script |
| acsrf | Adobe Audition Control Surface Plugin |
| act | Microsoft Office Assistant Actor |
| acv | OS/2 Warp Audio Driver |
| adadownload | Adobe Download Assistant Partial Download |
| add | Adobe PageMaker Plugin |
| Microsoft Dynamics AX Application Developer Documentation Data |
| addon | Zaplots CFS Console Add-on |
| adev | AppleTalk Data Connection File |
| adiumplugin | Adium Plugin |
| adiumscripts | Adium Script |
| ado | Adobe Photoshop Duotone Settings |
| adv | Audio Driver |
| Gravis UltraSound Virtual Device Driver |
| aee | ASUS Data Security Manager Encrypted File |
| aef | Cisco Unity Express Script |
| aex | Adobe After Effects Plug-in |
| agmodule | Adobe Photoshop Lightroom Module |
| agx1 | Adobe FreeHand for Mac Plug-in |
| ahd | Microsoft Dynamics AX Online Help Data |
| ahi | Microsoft Dynamics AX Online Help Index |
| ahq | Creative Audio HQ Plug-in |
| ai65 | Adobe PageMaker 6.5 for Mac Plugin |
| aif | Beatnik Player Plug-in Data |
| aip | Adobe Illustrator Plugin |
| aix | IBM AIX System File |
| aiz | Aero AIO Plug-in |
| ajz | Archos Jukebox Recorder Firmware |
| akwf | Oracle ZFS Storage Appliance Workflow |
| alh5 | Adobe PageMaker 5 for Mac Add-in |
| ali | Alice Plugin |
| almn | Mac OS X Location Manager Module |
| alt | Microsoft Dynamics AX Application Label Temporary File |
| amio | Adobe Audition AMIO Plugin |
| amxx | AMX Mod X Plugin |
| aoi | Microsoft Dynamics AX Application Object Index |
| aol | America Online |
| apd | Lotus 1-2-3 Printer Driver |
| api | Lotus 1-2-3 Printer Driver |
| apl | ACDSee Plugin |
| aplg | Audials One Plug-in |
| apln | Adobe InDesign Plug-in |
| aplp | Audials One Plug-in Package |
| appdownload | AppStore Partially Downloaded App |
| appex | Mac OS X Application Extension |
| appimage | AppImage Image |
| aqq | AQQ Plug-in |
| aria2 | aria2 Control Data |
| artask | BMC Remedy User Tool Shortcut |
| asd | Lotus 1-2-3 Screen Driver |
| asl | Adobe Photoshop Layer Style |
| assistant | HP Printer Utility for Mac Assistant Plugin |
| ast | ASTree Program |
