By default, all software supports multiple file extensions. Phantasy Star Online supports at least 2 different file extensions. The basic files that Phantasy Star Online supports are .NBL. However, not all of the extensions listed on the list are always used to save the effects of work in Phantasy Star Online. Very often, files with such extensions are used as source data files used by Phantasy Star Online.
Phantasy Star Online 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 Phantasy Star Online and try to save it in another file format, also supported by Phantasy Star Online.