By default, all software supports multiple file extensions. FastStone Image Viewer supports at least 17 different file extensions. The basic files that FastStone Image Viewer supports are .TIF. However, not all of the extensions listed on the list are always used to save the effects of work in FastStone Image Viewer. Very often, files with such extensions are used as source data files used by FastStone Image Viewer.
FastStone Image Viewer 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 FastStone Image Viewer and try to save it in another file format, also supported by FastStone Image Viewer.