yes, just export the body NiTriShape in Nifskope as OBJ, and you're ready to go. But ofc, OBJ alone will not allow you to keep weights. My workflow is usually using blender (3DS Max, in some cases has some issues keeping the vertex count order when exporting to OBJ) - I use blender 2.49 for import/export NIF operations only (NifTools suite for 2.62 is still under development and you may be able to successfully import or not NIFs, but exporting is not working as good) - In 2.6x I start by joining both _0 and _1 as shape keys (AKA Morph Targets) - Then I just export to OBJ, and bring it to zBrush, do stuff, both for _0 and _1, when I'm done, export the OBJ back to Blender, and use the awesome Lichtwerk MeshTransfer addon (get it here) to transfer the weights from the body to the armor. This will give me a good base to start off the weights, or you can just simply use the automatic bone influence when parenting a mesh to a skeleton.