By default, all software supports multiple file extensions. Backup4all supports at least 1 different file extensions. The basic files that Backup4all supports are .BKC. However, not all of the extensions listed on the list are always used to save the effects of work in Backup4all. Very often, files with such extensions are used as source data files used by Backup4all.
Backup4all 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 Backup4all and try to save it in another file format, also supported by Backup4all.