| File Extension: | A4L |
| File Type Description: | Authorware 4 Library |
| File Type Developer: | Adobe Systems Incorporated |
| Primary Associated Software: | Adobe Authorware |
| Primary Software Developer: | Adobe Systems Incorporated |
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The A4L file extension is a Authorware 4 Library file developed originally by Adobe Systems Incorporated for Adobe Authorware. Internal website statistics show that A4L files are most popular with users in United States and those running the Windows 10 operating system. Most of these users are running the Google Chrome web browser.
 | Adobe Authorware by Adobe Systems Incorporated |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Mac |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .A3L | Adobe Systems Incorporated | Data Files | Authorware 3 Library |
| .FHD | Adobe Systems Incorporated | Vector Image Files | FreeHand Drawing File |
| .PSP | Corel Corporation | Raster Image Files | PaintShop Pro Image |
| .SD1 | Adobe Systems Incorporated | Camera Raw Files | Dali Raw Image |
| .EDB | Microsoft Corporation | Database Files | Exchange Information Store Database |
| .SEQU | Adobe Systems Incorporated | Settings Files | Adobe Acrobat Sequence File |
| .RF | Adobe Systems Incorporated | Data Files | Adobe FrameMaker Document |
| .TTY | Adobe Systems Incorporated | Data Files | Adobe Dreamweaver Data |
| .NCR | Adobe Systems Incorporated | Raster Image Files | NCR Image |
| .M2TS | Sony | Video Files | Blu-ray BDAV Video File |
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