I am having problems with saving some surfaces as STL in solidworks. Please help me with how can i save as stl in solidworks.
You should have started a new thread on this, and perhaps on their user forum (what happened - couldn't anyone on that forum answer your question?
Attach your SolidWorks file here. Indicate which "surfaces" you need as stl.
Yes, it is available now. http://labs.autodesk.com
You can save a surface body as stl file in Inventor Fusion.
No, you cannot save a surface body as stl file in Autodesk Inventor.
(same answer as Message #12 rephrased)