| File Extension: | MKEXT |
| File Type Description: | Mac OS X Mach Kernel Extension Memory Cache |
| File Type Developer: | Apple |
| Primary Associated Software: | macOS |
| Primary Software Developer: | Apple |
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Apple developed the Mac OS X Mach Kernel Extension Memory Cache file type when the macOS was initially released. Our internal web tracking data indicates that Windows 10 operating system users, and those living in China, are the most likely to use Mac OS X Mach Kernel Extension Memory Cache files. Google Chrome is their primary internet browser for the bulk of these users.
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Mac |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .MACWRITE | Apple | Text Files | MacWrite Text Document |
| .PRISM | Apple | Data Files | Golden Orchard Apple II CD Rom File |
| .RLELZW | Apple | Data Files | Golden Orchard Apple II CD Rom File |
| .STARTUP | Apple | Data Files | Golden Orchard Apple II CD Rom File |
| .HPRT | Apple | Data Files | Golden Orchard Apple II CD Rom File |
| .ALAW | ITU-T (International Telecommunication Union, Telecommunication Standardization Sector) | Audio Files | A-Law Compressed Sound Format |
| .DSK | Power Software Ltd | Disk Image Files | General Disk Image |
| .SD2 | Avid Technology | Audio Files | Sound Designer II File |
| .05 | Apple | Data Files | Golden Orchard Apple II CD Rom File |
| .HELP | Apple | System Files | Mac OS X Help Book |
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