Golden Software Binary Grid (*.grd)

This is the binary (non-human-readable) version of one of the raster formats used by Golden Software products (such as the Surfer series).

Like the ASCII version, SIS Desktop 9 supports this format for both reading and writing (including create, delete, and copy).

Currently the associated formats for colour, metadata, and symbols are not supported.


  • Cadcorp SIS Desktop
  • Cadcorp SIS Desktop Express
  • Cadcorp SIS ActiveX Modeller
  • Cadcorp SIS ActiveX Manager
  • Cadcorp SIS ActiveX Viewer
  • Cadcorp GeognoSIS