| File Extension: | CFK |
| File Type Description: | Microsoft Developer Studio Diagram File |
| File Type Developer: | Microsoft Corporation |
| Primary Associated Software: | Microsoft Visual Studio |
| Primary Software Developer: | Microsoft Corporation |
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Microsoft Corporation developed the CFK file extension, also know as a Microsoft Developer Studio Diagram File file, for the Microsoft Visual Studio software package. Commonly, Microsoft Developer Studio Diagram File files are found on user computers from United States, and on PCs running the Windows 10 operating system. Google Chrome is the predominant internet browser used by this population.
 | Microsoft Visual Studio by Microsoft Corporation |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .CFL | Corel Corporation | Uncommon Files | Corel Flow Flow Chart File |
| .DOCXML | Microsoft Corporation | Text Files | Microsoft Word XML Document |
| .PRE | IBM | Data Files | Lotus Freelance Graphics File |
| .RAF | Fuji Xerox | Camera Raw Files | Fuji RAW Image File |
| .PNO | Microsoft Corporation | Audio Files | Windows 8 Piano Song |
| .PLSC | Microsoft Corporation | Executable Files | Messenger Plus! Live Script File |
| .MDF | Alcohol Soft | Disk Image Files | Alcohol 120% Disk Image File Format |
| .DX | Digital Equipment Corporation | Text Files | DEC WPS Plus File |
| .PSP | Corel Corporation | Raster Image Files | PaintShop Pro Image |
| .SF1 | The U.S. Census Bureau | Database Files | 2010 Census Summary File 1 |
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