This file (L-Shaped Modern Sofa) is made in Autodesk 3d studio max v9. Can I open this file in newer (different) 3d studio max software or even different 3d software?
Yes of course! Any 3d max version newer than version 9 could open this file without any issues. That mean you can open this file in versions like 9, 2008, 2009, ... 2012 (and newer / latest). If you have different software or version, you can still import the additional formats packet in the download like: .fbx, .obj