Um... The mesh, the file with the extension .obj, is the shape of the shell. The .cr2 or .pz3 or .hr2 or .pp2 is a text file with instructions on how to take that mesh, bend it, and apply textures to it. http://home.earthlink.net/~nomuse/tute2/mouse.html Anyhoo...any text editor can open a .cr2 (for that matter, any text editor can open an .obj -- but rarely is that useful). And the idea here, is that clothing is, basically, the same guy or girl with bigger skin. It needs to have the same joints in the same places, so where ever the girl walks, the pants and sweater also walk. Some recent figures, like The Girl, have a "base" cr2 included in the download. Otherwise, the job is to remove all the morphs and the textures. Or...find a clothing item that already fits, and borrow the "bones" (for that is what much of a cr2 is) from that. That help?