Hi shokan,

> Any suggestion on what to use then?

Unfortunately none of those formats will open in MoI, they are all polygon data formats.

There are free NURBS models on the internet but they are scattered in smaller libraries, it's just a matter of finding them.

Here's one with architectural models that will open in MoI, just download the 'free Rhino NURBS model' and not the 3ds version.

http://www.flyingarchitecture.com/



Cheers