By default, all software supports multiple file extensions. Comic Book Millennium supports at least 2 different file extensions. The basic files that Comic Book Millennium supports are .CB7. However, not all of the extensions listed on the list are always used to save the effects of work in Comic Book Millennium. Very often, files with such extensions are used as source data files used by Comic Book Millennium.
Comic Book Millennium 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 Comic Book Millennium and try to save it in another file format, also supported by Comic Book Millennium.