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