| 1 | 8BC | N/A | Photoshop 5.0 Plug-in |
| 2 | 8BE | Adobe Systems | Adobe Plug-in Filter Format |
| 3 | 8BF | Adobe Systems | Filter Factory Image Filter |
| 4 | 8BI | N/A | Photoshop Plug-in |
| 5 | 8BI8 | Adobe Systems | Photoshop Plug-in |
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| 6 | 8BL | Adobe Systems | Photoshop Plug-in |
| 7 | 8BP | Adobe Systems Incorporated | Adobe PhotoShop Import |
| 8 | 8BS | Adobe Systems | Photoshop 5.0 Selection Plug-in |
| 9 | 8BX | Adobe Systems | PhotoDeluxe Plug-in |
| 10 | 8BY | Adobe Systems | PhotoDeluxe Plug-in |
| 11 | 8TY | Adobe Systems Incorporated | Adobe Photoshop |
| 12 | ABE | N/A | Application Boundaries Enforcer |
| 13 | ACCDA | Microsoft | Access Add-in Format |
| 14 | AIP | Adobe Systems | Illustrator Plug-in |
| 15 | API | Adobe Systems | Acrobat Plug-in |
| 16 | APLN | Adobe Systems Incorporated | Adobe InDesign 3rd Party Extension |
| 17 | ARPI | N/A | Adobe Extension |
| 18 | AWF | Adobe Systems Incorporated | Adobe WorkFlow Workgroup Plugin |
| 19 | BUNDLE | Apple | Mac OS X Application Plug-in |
| 20 | CLR | Adobe Systems | Flash Color Set |
| 21 | COMPONENT | Apple | Mac OS X System Component |
| 22 | CRX | Google | Chrome Extension |
| 23 | D64 | N/A | Commodore 64 Disk Image |
| 24 | DOCKTILEPLUGIN | N/A | Apple Mac OS X app plugin file |
| 25 | ECF | Microsoft | Outlook Add-in |
| 26 | GTA | Microsoft | Microsoft Groove Tool Archive |
| 27 | HA | N/A | HA Compressed Archive |
| 28 | HPLG | Apple, Inc. | Apple ITunes Device Plugin |
| 29 | HVPL | Apple | ITunes Visual Plug-in Format |
| 30 | INDESIGNPLUGIN | Adobe Systems | Adobe InDesign Plug-in |
| 31 | LD2 | Lingoes Project | Lingoes Dictionary Format |
| 32 | LZO | N/A | LZO Compressed Format |
| 33 | MDA | Microsoft | Access Add-in |
| 34 | MENU | id Software | Quake 3 Engine Menu Format |
| 35 | MXI | Adobe | Adobe Dreamweaver Extension Manager Format |
| 36 | MXP | Adobe Systems | Adobe Extension Package |
| 37 | OBR | Micro Focus International plc | Borland C++ Object Browser Data |
| 38 | OXT | Sun Microsystems | Apache OpenOffice Extension |
| 39 | PLEXAPP | Plex Media Center Team | Plex Package |
| 40 | PLUGIN | Adobe Systems | Mac OS X Plug-in |
| 41 | PPA | Microsoft | PowerPoint Add-in |
| 42 | PPAM | Microsoft | PowerPoint 2007 Add-In |
| 43 | Q7Q | N/A | India Ink Photoshop Plug-in |
| 44 | QLGENERATOR | Apple | Quick Look Generator Format |
| 45 | RPLN | Adobe Systems Incorporated | Adobe InDesign Required Function Library |
| 46 | RSRS | Magic Modules Pty Ltd | Buddy API |
| 47 | SEPLUGIN | Apple | AppleScript Editor Plug-in |
| 48 | STD | Oracle | Apache OpenOffice Drawing Template |
| 49 | TGP | Jo Meder | TGPGuiLib Terragen Plugin |
| 50 | UPI | N/A | Ulead PhotoImpact Plugin |
| 51 | WLL | Microsoft | Microsoft Word Add-in |
| 52 | WPR | Apple, Inc. | Apple Logic Studio WaveBurner Plug-in Preset |
| 53 | WSSX | N/A | Generic |
| 54 | WWL | Microsoft Corporation | Microsoft Word Add-in |
| 55 | X32 | Adobe Systems | Adobe Xtra Format |
| 56 | XLA | Microsoft | Excel Add-In Format |
| 57 | XLA5 | Microsoft Corporation | Microsoft Excel 5 For Mac Add-in |
| 58 | XLA8 | Microsoft Corporation | Microsoft Excel 98 For Mac Add-in |
| 59 | XLAM | Microsoft | Excel Open XML Macro-Enabled Add-In |
| 60 | XLA_ | Microsoft Corporation | Microsoft Excel 4 For Mac Add-in |
| 61 | XLL | Microsoft | Excel Add-In Format |
| 62 | XLL_ | Microsoft Corporation | Microsoft Excel 4 For Mac Add-in |
| 63 | XLV | Microsoft | Excel Visual Basic Module |
| 64 | XPI | Mozilla | Mozilla Installer Package |
| 65 | ZXP | Adobe Systems | Extension Manager Package |
