>>161623
remember, old-school MacOS doesn't care about file extensions, it stores 4 character file and creator codes to determine file types

you might want to download resedit if you end up with a file you can't open in a Mac program as a result even though you know it's fine (it's also just useful, you can edit icons and shit with it)

the resource fork was a bad idea (I think modern macOS still uses it but for almost nothing these days) but it was also pretty cool