By default, all software supports multiple file extensions. XnView supports at least 421 different file extensions. The basic files that XnView supports are .DAT. However, not all of the extensions listed on the list are always used to save the effects of work in XnView. Very often, files with such extensions are used as source data files used by XnView.
XnView 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 XnView and try to save it in another file format, also supported by XnView.