By default, all software supports multiple file extensions. jp2a supports at least 3 different file extensions. The basic files that jp2a supports are .JPG. However, not all of the extensions listed on the list are always used to save the effects of work in jp2a. Very often, files with such extensions are used as source data files used by jp2a.
jp2a 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 jp2a and try to save it in another file format, also supported by jp2a.