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