From SW 2012 to Lightwave 11. The Lightwave docs say the following:
What file formats can I use with LightWave?
LightWave Works with these formats:
obj,3ds,lwo,dxf,shockwave(this is more of a scene file)
Unfortunately, the dxf file ends up being 2d data. None of the others seem to work either. Does anybody have any ideas to more 3D models from Solidworks to Lightwave and vice versa?