The Export BT (Binary Terrain) command allows the user to export any loaded elevation grid data sets to a BT (Binary Terrain) format file.
When selected, the command displays the BT (Binary Terrain) Export Options dialog which allows the user to setup the export. The dialog consists of a General options panel which allows the user to set up the grid spacing to use, a Gridding panel, and an Export Bounds panel which allows the user to set up the portion of the loaded data they wish to export.