EOF doesn't support that format, but Tux Guitar should be able to export to Guitar Pro format, which EOF can import.
Thx, I got it figured out. Now I'm trying to figure out how to synchronize the notes properly. I hit ctl A, but it will only let me drag the notes to a certain point...
You'll definitely want to check out the tutorials on how to sync your beat map. There's a video tutorial that I did, as well as a text based tutorial that @firekorn put together a while back. Either of them, or even both will help you out a lot.
You DEFINITELY don't want to be dragging notes around as a method of synchronization.