I am trying to find where MixedInKey and Rekordbox keep the backup to save all my analyzed music/hotcues to transfer to another laptop.
I have EngineDJ and Rekordbox.xml backed up.
Errrr…if you have Rekordbox.xml backed up, why do you need to know where Rekordbox keeps the backup? 
I assumed rekordbox.xml was just for hotcues to import into Engine or is that the backup file of all analyzed rekordbox music also?
Rekordbox has an export/import database function. Don’t know about MIK, but does it contain anything useful? All tags are written to the files.