A kext file extends Mac OS X’s kernel. They add device drivers and system modifications. Developers should avoid writing them. Mac OS X can load them dynamically.
Mac OS X kernel extensions have .kext format. They belong to system files category. Mac OS X and macOS open them.
Kext files are drivers. They extend Mac OS X’s kernel. Hackintoshes need special kexts. Some kexts modify existing OS X kexts like AppleHDA.kext. Others add to the normal kext list.
The .kext extension has 323 file types. But most are not compatible. You must use different apps for each. N/A originally developed the format for Mac OS X. Our .kext file tools: opener, converter, viewer, editor.
Despite an installed app, if a .kext file does not open in Mac OS X, create a file association. Call the context menu and select Properties.
Apple macOS
Kext Utility