Came across this while searching for a 3D model viewer. Unlike a lot of the search results I got back this one is recent (updated in last couple of months), free open sourced & can export also. Opens a lot of diff formats as it's based on the Open Asset Import Library (assimp) as well.
Link http://www.open3mod.com/
Have fun
Lee
Link http://www.open3mod.com/
Have fun
Lee