Quote - OptiTex hardly supports common 3D formats at all, but does DXF. Poser imports DXF.

If you read carefully, the DXF is for 2D pattern import into Optitex's creation program. I'm sure I've seen mention of people exporting OBJs from D|S, but can't remember any mention of how well such exports did in Poser or if there were any gotchas (like the need to weld etc.)