| File Extension: | ACF |
| File Type Description: | Steam Application Cache File |
| File Type Developer: | Valve |
| Primary Associated Software: | Valve Steam |
| Primary Software Developer: | Valve |
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The ACF file extension is a Steam Application Cache File file developed originally by Adobe Systems Incorporated for Adobe Photoshop CC. Annoymous user data statistics infer that ACF files are most popular in United States and with those using Windows 10 devices. Most of these users are running the Google Chrome web browser.
 | Valve Steam by Valve |
 | X-Plane by Interscape |
 | Adobe Photoshop CC by Adobe Systems Incorporated |
 | Microsoft Agent by Microsoft Corporation |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | iOS |
 | Android |
 | Linux |
 | Windows Phone |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .SIM | Valve | Backup Files | Steam Game Backup Information File |
| .FGD | Valve | Game Files | Forge Game Data File |
| .EKV | Valve | Game Files | Left 4 Dead Game Data |
| .SPR | Valve | Raster Image Files | Half-Life Sprite File |
| .SID | Valve | Game Files | Steam Game Data Backup File |
| .RAD | Reality Pump Studios | Audio Files | Reality Adlib Tracker Module |
| .PKV | Valve | Compressed Files | Steam Package Data |
| .TF2 | Valve | Game Files | Team Fortress 2 Data File |
| .CTX | Microsoft Corporation | Developer Files | Visual Basic Control Binary File |
| .PHY | Autodesk, Inc. | 3D Image Files | 3ds Max Physique File |
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