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