By default, all software supports multiple file extensions. Apple Preview supports at least 33 different file extensions. The basic files that Apple Preview supports are .AI. However, not all of the extensions listed on the list are always used to save the effects of work in Apple Preview. Very often, files with such extensions are used as source data files used by Apple Preview.
Apple Preview 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 Apple Preview and try to save it in another file format, also supported by Apple Preview.