How can i see the drawing features of an imported file on design tree (Solidworks 2012)?

I'm a new user on Solidworks and I joined this site. But the the parts in the files which I downloaded from tihs site are imported so I'm not able to see the how to draw a part on design tree. How can fix this problem?

3 Answers

You can only add a feature to the STEP/IGES files (in case Assembly is converted into part too.)

unfortunately, it's not possible to view features when the model is saved in step, igs, stl ...
when you open files in solidworks that have above formats, you have a feature recognizing wizard that in most case won't give you a good results
try downloading models that have solidworks format.

You can try to import features in SW 2012,while importing STL,STEP or IGES files,but not always is possible to do it.