FBX, FilmBox, is a popular 3D file format that was originally developed by Kaydara for MotionBuilder. It was acquired by Autodesk Inc in 2006 and is now one of the main 3D exchange formats as used by many 3D tools. FBX is available in both binary and ASCII file format. The format was established to provided interoperability between digital content creation applications.
RVM data files are related to AVEVA PDMS. RVM file is an AVEVA Plant Design Management System Model. AVEVA's Plant Design Management System (PDMS) is the most popular 3D design system using data-centric technology for managing projects.