Question: can edrawings viewer open step files?
Answer: eDrawings Professional also includes the Publisher add-in for SOLIDWORKS®, AutoCAD®, CATIA®, Pro/ENGINEER®, Unigraphics/NX, Inventor, Autodesk Inventor, Solid Edge®, RapidFire Lite (View/Publish IGES, STEP & STL files), Google SketchUp and CoCreate's OneSpace users.