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