Geosoft Binary Grid .GRD File Description


The Geosoft Grid filter imports Geosoft .GRD or .GGF grid version 2 format in compressed and uncompressed format and exports in .GRD or .GGF format.


File Description

Geosoft grid is a binary format for storing raster data typically used for geophysical and elevation data. Two files describe each grid (.GRD and .GI). Technical information on this file format is reportedly available in the manual for Geosoft’s Montaj software application.


File Format

Sometimes there is an associated .GI projection file that comes with the binary .GRD file.


File Name Extensions



The .GI file contains information about the coordinate reference system.


Import Method

Choose the File | Import command.


Export Method

Select a lattice or image module and choose the File | Save Data command to export .GRD or .GGF files.



See Also

File Format Chart

File | Import

File | Save Data