I found this software yesterday and found it can open nvx2 files, but it can't open the default carlod0, 1, and 2. Nor can it export as nvx2. It will however open all .nvx2 files from mods. I also found a website that converts .max to .obj. I tested it out and it works really well. Links:
anyconv.com/max-to-obj-converter/ 3doc.i3dconverter.com/ Screenshots of the ford mustang gt 500 mod in i3d converter