| 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 United States. 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 |
|---|---|---|---|
| .H_ | Microsoft Corporation | Backup Files | Microsoft Windows WinHelp Compressed Data |
| .MS_ | Microsoft Corporation | Backup Files | Microsoft Windows WinHelp Compressed Data |
| .LANG | Mojang | Game Files | Minecraft Language File |
| .NLD | ATI Technologies | System Files | ATI Radeon Video Driver File |
| .P5 | Larry Wall | Developer Files | Perl Source Code |
| .WK1 | IBM | Data Files | Lotus Worksheet |
| .MIN | Okuma | CAD Files | Okuma CNC Program File |
| .PRN | Various Developers | Page Layout Files | HP PCL Printer Output |
| .VUD | Microsoft Corporation | Data Files | Virtual Machine Undo Drive File |
| .OCA | Microsoft Corporation | Developer Files | Custom Control Library Type File |
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