hey guys, as promised, here's my shitty model editor:
http://shoresofnis.com/post.php?postID=9
to convert, just open an mdl or obj, then File->Save / Ctrl+S.
You need to use the file extension drop down. Just typing it in will not work.
You can also mess around with UVs a bit too and batch rename frames with a text file.
the idea is if you are importing your model with a bunch of separate files, you can do a dir /b in the folder and dump the output to a text file.
yes, i know, this is super primitive and just awkward. mainly it was to learn 3D picking and Open GL, but it does let you bring models into your model editing program with their UVs intact, and I think the UV editor is pretty good...