opened it in Blender OK. File attached. Thinking maybe I need to do something to it in Blender that will make it compatible? (Just spent my first 4 hours with Blender .... now have headache ..... is Blender an amazing app that has a steep learning curve?) TIA,
Since MeshLab can't import the file either, it's safe to say that the mesh did not get exported properly. I don't use Blender myself though .. so I can't really help you with that. Perhaps somebody else here will come to the rescue, or you can try the Blender forums.