By default, all software supports multiple file extensions. GWv4 supports at least 1 different file extensions. The basic files that GWv4 supports are .GIN. However, not all of the extensions listed on the list are always used to save the effects of work in GWv4. Very often, files with such extensions are used as source data files used by GWv4.
GWv4 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 GWv4 and try to save it in another file format, also supported by GWv4.