| File Extension: | CN_ |
| File Type Description: | Compressed Windows Help Content |
| File Type Developer: | Microsoft Corporation |
| Primary Associated Software: | Microsoft Windows |
| Primary Software Developer: | Microsoft Corporation |
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Microsoft Corporation created the Compressed Windows Help Content (CN_) file for the Microsoft Windows software series. Internal website statistics show that CN_ files are most popular with users in United States and those running the Windows 10 operating system. A vast majority of these users are opting to use Google Chrome as their preferred internet browser.
 | Microsoft Windows by Microsoft Corporation |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .DBC | Microsoft Corporation | Database Files | FoxPro Database File |
| .SPC | Various Developers | Web Files | Software Publisher Certificate File |
| .3IN | Microsoft Corporation | Data Files | MSN Setup Information |
| .COO | Autodesk, Inc. | Text Files | AutoCAD Bounding Coordinates Cookie |
| .ACCDE | Microsoft Corporation | Database Files | Access Execute Only Database |
| .DEVICEMETADATA-MS | Microsoft Corporation | System Files | Device Metadata Package |
| .ASE | Adobe Systems Incorporated | Settings Files | Adobe Swatch Exchange File |
| .PTX | Adobe Systems Incorporated | Font Files | PageMaker Template File |
| .XLSB | Microsoft Corporation | Spreadsheet Files | Excel Binary Spreadsheet |
| .UTB | Unknown Developer | Backup Files | µTBackup Backup |
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