By default, all software supports multiple file extensions. Myst IV: Revelation supports at least 1 different file extensions. The basic files that Myst IV: Revelation supports are .M4S. However, not all of the extensions listed on the list are always used to save the effects of work in Myst IV: Revelation. Very often, files with such extensions are used as source data files used by Myst IV: Revelation.
Myst IV: Revelation 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 Myst IV: Revelation and try to save it in another file format, also supported by Myst IV: Revelation.