how to move playlists from ext.hdd to rekordbox playlist folder

I have the same playlists, three times in my ext. hdd and i don't see any playlist in the rekordbox playlist folder or collection. How can i bring back playlists??

Ok, restored from backup but.... still 3 almost same playlists on ext. hdd and even if i delete them, when i close and reopen the program i don't see the changes...