There are no vocals or added audio, etc. You should be able to open it and then turn right around and save it as a midi file. I can't remember, but I am sure there are no more than 10 tracks. I am just a hobbyist, not a pro, so it's not very complex. But I did it for a friend and he still performs with it. I played it and recorded it through a Roland JV1010 Sound Module so the WRK file probably will not sound good on its own, but you'd be welcome to listen to it. I bought a Mac a couple years ago and use Logic Express 9 now, and I failed to convert this file before I got rid of my Windows machine. Thanks so much for responding.