By default, all software supports multiple file extensions. iPhoto supports at least 20 different file extensions. The basic files that iPhoto supports are .DAT. However, not all of the extensions listed on the list are always used to save the effects of work in iPhoto. Very often, files with such extensions are used as source data files used by iPhoto.
iPhoto 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 iPhoto and try to save it in another file format, also supported by iPhoto.