By default, all software supports multiple file extensions. darktable supports at least 30 different file extensions. The basic files that darktable supports are .CR2. However, not all of the extensions listed on the list are always used to save the effects of work in darktable. Very often, files with such extensions are used as source data files used by darktable.
darktable 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 darktable and try to save it in another file format, also supported by darktable.