| File Extension: | A4R |
| File Type Description: | Adobe Authorware Package Course Data |
| File Type Developer: | Adobe Systems Incorporated |
| Primary Associated Software: | Adobe Authorware |
| Primary Software Developer: | Adobe Systems Incorporated |
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Adobe Systems Incorporated created the Adobe Authorware Package Course Data (A4R) file for the Adobe Authorware software series. Data from our web servers (annonymous users) show that A4R files are most popular in United States and are often used by Windows 10. 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 |
|---|---|---|---|
| .QXD | Quark Software Inc. | Page Layout Files | QuarkXPress Document |
| .DIB | The GIMP Development Team | Raster Image Files | Device Independent Bitmap File |
| .8BI8 | Adobe Systems Incorporated | Plugin Files | Adobe Photoshop Plugin |
| .RL8 | Microsoft Corporation | Graphic Files | Windows Bitmap Image |
| .12U | Adobe Systems Incorporated | Font Files | Adobe PageMaker Font File |
| .IST | Flexera Software | Developer Files | InstallShield Project Template File |
| .ASP | Microsoft Corporation | Web Files | Active Server Page |
| .MEF | Microsoft Corporation | Camera Raw Files | Mamiya RAW Image |
| .KKW | Adobe Systems Incorporated | Data Files | Adobe RoboHelp Keyword Help Project Index File |
| .PCM | Various Developers | Audio Files | Pulse Code Modulation |
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