Moving folders · How moving folders works
Can I open my moved files on another computer by plugging in the drive?
Short answer: Yes, the files themselves — they're ordinary files in your Mac's folder on the drive — but the links that show them in their original places exist only on your own Mac. Avoid moving or renaming them from another computer, or your links break.
You can browse and open the files themselves — they're ordinary files in your Mac's folder on the drive — but the links that make them appear in their original places only exist on the Mac they came from. On another Mac, open the drive in Finder and go into the folder named after your Mac.
A Mac-formatted drive can't be read by Windows without extra software. And edit with care: changing or moving things on the drive from another computer can break the links on your own Mac.