.KEXT File

The kext file extension is related to Mac OS X (macOS) operating system.

A kext file is a kernel extension. They're generally used for device drivers and other things that need to modify the system at the lowest level.

Since kernel extensions aren't protected by Mac OS memory protection, developers are encouraged to stay away from writing them unless they absolutely have to. Even then, Mac OS X (macOS) can dynamically load them, so chances are you'd rarely have to add anything to Mac OS's Extensions folder.

Files with kext file extension can be commonly found as system files in Mac OS X (macOS) operating system. Kernel files.

How to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.