| File Extension: | C_ |
| File Type Description: | Microsoft Windows WinHelp Compressed Data |
| File Type Developer: | Microsoft Corporation |
| Primary Associated Software: | Microsoft Windows |
| Primary Software Developer: | Microsoft Corporation |
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C_ files are a type of Microsoft Windows WinHelp Compressed Data developed for Microsoft Windows by Microsoft Corporation. Website visitor analysis indicates that C_ files are commonly found on Windows 10 user machines, and are most popular in Japan. Google Chrome is their primary internet browser for the bulk of these users.
 | Microsoft Windows by Microsoft Corporation |
 | Microsoft Windows Help by Microsoft Corporation |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .MS_ | Microsoft Corporation | Backup Files | Microsoft Windows WinHelp Compressed Data |
| .H_ | Microsoft Corporation | Backup Files | Microsoft Windows WinHelp Compressed Data |
| .MET | Emulex Corporation | Data Files | eMule Resource File |
| .SHA | Corel | Graphic Files | CorelDraw Shader File |
| .OLM | Microsoft Corporation | Data Files | Mac Outlook Database File |
| .SWM | Microsoft Corporation | Disk Image Files | Split Windows Imaging Format File |
| .FOLDER | Microsoft Corporation | System Files | Microsoft Windows Explorer Folder File |
| .XLA | Microsoft Corporation | Plugin Files | Excel Add-In File |
| .DEC | Various Developers | Developer Files | Declaration File |
| .EDB | Microsoft Corporation | Database Files | Exchange Information Store Database |
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