It allows to export to OBJ format, but SH3D fails to open it, maybe it's just matter of adjusting some lines in the file (missing material?).

No, you have to fix the number format but there seems to something else wrong too. I haven't figured it out yet.

Edit: Correction, just remove all comma's and you can import it in Sweet Home 3D. I don't remember where I encountered the wrong number format.