Hi kellyboy1,
just copy the .mfd file(s) onto a USB stick. Then refer to pages 91/92 of the SX900 Reference Manual ("Importing Music Finder Records to the Playlist").
When importing an .mfd file this way, a Playlist file (.tsv) is automatically created, as well as a Registration Bank file (.rgt) for each single Record (song title) of the original .mfd file.
Best regards,
Chris