Blender opens the file no problem.
You do have to assign a shader to the object which is actually in 2 halves from what i can see.
As soon as I have a clue how to package it so you can use it.. I'll post it...as a tgo or as an obj.
My guess is ...someone more efficient than me will have done this by the time I figure it out.. and yes.. to a first timer .. Blender is a nightmare...
Rest assured... the object can be used in TG.. I did a test...!
If the image doesn't show.. it's a pebkac (problem exists between keyboard and chair !)
Rgds
Chris