nesibus, I was looking for the spec for X files among other things the other day and I was not not suprised that I didn't find anything. Microsoft does include a 3ds to x file converter with the directx sdk but I'm not sure about the other way . . . Bryce supposedly imports x files but good luck getting them back out - supposedly there is a way if you look through the Bryce Forum - something about hitting the e dialog box for the selected mesh/object then control +click or something like that. anyrate, good luck! - TJ