Tools for decoding battlespire files (and possibly other xl engine games)
bsatool will read anything pre-morrowind, but cant decompressed files from arena
bsitool mostly works but is missing some detail about colour
bs6tool dumps the level files to xml, i was using basex to pick them apart
3dtool dumps to .ply, don't remember if i got normals working but it's good enough that i've managed to import entire levels into blender