By default, all software supports multiple file extensions. Modelviewer supports at least 1 different file extensions. The basic files that Modelviewer supports are .MD5MESH. However, not all of the extensions listed on the list are always used to save the effects of work in Modelviewer. Very often, files with such extensions are used as source data files used by Modelviewer.
Modelviewer 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 Modelviewer and try to save it in another file format, also supported by Modelviewer.