If you want troubleshoot the mesh or grab some coordinates etc there is
meshwizard.
If you want to import model into your 3d software, then there are plugings for those. I don't know what 3d software you;re using so can't help more at the moment. Personally I use
http://www.orbithangar.com/searchid.php?ID=4185 but I'm 3ds max user, and this plugin works both ways.