I obtained a dwg-file which was created in other software and exported to dwg. When I open it in Acad2007 and clik on it I see that it is a mesh. I need to convert this mesh to surfaces or solids. Is there a way to do that ? Thank you !
If it is already a mesh then just select it and right click. You should see the option of "object viewer" seclect that and it can show you it as a solid rendered.