CONVERSION STL FILE TO SOLID/CAD/NURBS SOFTWARE COMPATIBLE FORMAT

Hi,
I need help. I have a stl file that I need to convert into solid cad file. Something similar to this:
http://humster3d.com/solid/?need=1
Anybody knows how can I do it?
Thanks
3 Answers

from a 3DM file with crossmanager ( http://www.datakit.com/en/cross_manager.php) you may convert in solidworks