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