I have exported many, many model formats from xfrog and interestingly enough i had ran into the same problem now that i remember. I uninstalled xfrog quite sometime back. I just had these files sitting on my PC all this time. I finally got around to sharing these. I have been to busy getting into grasps with my HDRI work so i have not had time for anything else really. Anything HDRI related is not an easy thing.
BTW, i do have one more model to share. It is a tree that might belong in a swampy climate of sorts. I need to make the leaf texture for it first before i upload it later.