By default, all software supports multiple file extensions. RationalPlan Project Viewer supports at least 2 different file extensions. The basic files that RationalPlan Project Viewer supports are .MPP. However, not all of the extensions listed on the list are always used to save the effects of work in RationalPlan Project Viewer. Very often, files with such extensions are used as source data files used by RationalPlan Project Viewer.
RationalPlan Project Viewer can be used to convert file formats between the file extensions listed below. You can open a file with one of the file extensions below via RationalPlan Project Viewer and try to save it in another file format, also supported by RationalPlan Project Viewer.