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