rekordbox library question

recently my macbook stopped working with all my MP3's inside of the internal drive, my most recent backup was a few years ago(dumb move on my part).

i have a bunch of my most recent music/playlists on USBs but i am uncertainly as to whether or not i can import the files back onto my new laptops harddrive as normal mp3s again(i use serato along with rekordbox) if they are formatted with rekordbox on the USBs, any help would be appreciated. cheers.