Editing, uploading

Hey all! I edited all my tracks and playlists directly on my usb in rekordbox. I know it was a stupid idea to do so, instead doing that on my rekordbox playlists. If I would do so, I wouldn't be here now. Is there any way to get those edited playlists to another usb? Export works only straight from rekordbox, not from usb to usb. I'd be happy if I could get those playlists to my rekordbox base too, as I don't want to edit everything again, as it took me 1 month to finish it... Thank you all!