By default, all software supports multiple file extensions. Granny 3D supports at least 2 different file extensions. The basic files that Granny 3D supports are .GR2. However, not all of the extensions listed on the list are always used to save the effects of work in Granny 3D. Very often, files with such extensions are used as source data files used by Granny 3D.
Granny 3D 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 Granny 3D and try to save it in another file format, also supported by Granny 3D.