This also from the long gone ShareCG... I like this 3D viewer as it has process functions that are fast & useful like 'weld' which welds all vertices in the model both exact & near which is useful for Nendo exports which are not welded... Also the convert to Tris or Quads command is cool... There is a 'fix normals' and more convert 3DS><OBJ or either to PP2 also has a LuxRender export... Great freeware...
https://archive.org/details/prop-viewer-3.2
https://archive.org/details/prop-viewer-3.2