Ahoy, Laddies!

I read some articles on the internet that the music on the game are XM. files. I tried to extract them, but when I open them up, the notes are scrambled up, and no instruments play. Is there any way to get the music for the game that are not corrupted? Thanks.

P.S. I want to know how to get the original XM files that was used on the game. It's inside the BIGLUMP.BIN folder (if you have the game.)