My exporter generates a new truckfile, without the need of using a blank one. It exports nodes beams and faces. It can mark faces as byoancy, and/or contactable faces .
Because I do not have a Windows-based-PC, i tested it just on my Linux system. Feel free to report any error you are getting with my plugin. Maybe i can solve it.
I would like to add the submesh feature next, to be able to throw a textured NB-Structure into the Game, but i am not sure if I can get it done.