By default, all software supports multiple file extensions. Cygwin supports at least 47 different file extensions. The basic files that Cygwin supports are .10NV. However, not all of the extensions listed on the list are always used to save the effects of work in Cygwin. Very often, files with such extensions are used as source data files used by Cygwin.
Cygwin 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 Cygwin and try to save it in another file format, also supported by Cygwin.