Add spheres and checker board targets to your scan scratch its surface apply a spray substance called WWR45 and voila!

Since the file is native so i don't think it can be edited with any CAD program . You can make modifications to them, like subtracting or adding.

whenever i lost my file i convert it on brep by following step import the mesh and then click on the settings (gear) icon down in the bottom right - p...

I hate to work with mesh files i had bad experience with it. always pretty ugly - but it can be done by converting mesh file in brep

Have you have ever used NX ?. I did some research and find that 80% of People giving votes to NX

Any problem/drawback you faced with this software ?

I am going to model a car but i am stuck which software should i select. I have three option Solidworks Autocad and NX11d