There are 8 other file types using
the GRD file extension!

grd icon.grd - Adobe Photoshop gradient preset

empty icon.grd - Drivers for GRX

empty icon.grd - Golden Software Surfer grid data

empty icon.grd - ENVI grid data

empty icon.grd - ZEMAX profile data

empty icon.grd - Gradebook Power configuration

empty icon.grd - StrongDisk encrypted disk image

empty icon.grd - Artweaver gradient

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GRD file extension - The RockWorks data

What is grd file? How to open grd files?

File type specification:

Various data file type icon Various data file type

The RockWorks program uses the grd file extension to store regularly spaced XYG data for use in contour maps and 3D surfaces in an ASCII format.

  • The first line lists the X-coordinate of the westernmost grid node.
  • The second line lists the Y-coordinate of the southernmost grid node.
  • The third line lists the number of cells (nodes - 1) that are listed for the X-axis (west to east), and the fourth lists the number of cells listed for the Y-axis (south to north). 
  • The fifth and sixth lines list the spacing, in map units, of the grid nodes along the X-axis and Y-axis, respectively. 
  • Starting in the seventh line, the Z-values for the grid nodes are listed, starting with the grid node in the southwestern corner of the grid and proceeding to the north. When the top of that first column of nodes is reached, the listing proceeds with the second column, starting with the southernmost node and listing upward. A Z-value will be listed for each node in the GRD file.


The default software associated to open grd file:

RockWorks picture or screenshot

RockWare, Inc. logoRockWorks  Microsoft Windows software

Company or developer:
RockWare, Inc.

RockWorks is RockWare's flagship software program. RockWorks has long been the standard in the petroleum, environmental, geotechnical and mining industries for subsurface data visualization because of popular tools such as maps, logs, cross sections, fence diagrams, solid models and volumetrics.

Help how to open:

Use compatible tools to work with *.grd files.

How to convert:

Probably can be exported to other formats.

List of software applications associated to the .grd file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open grd file, edit grd file, convert grd file, view grd file, play grd file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting grd files.

Software that open grd file - The RockWorks data

Programs supporting the exension grd on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about RockWorks for open grd file action.

Microsoft Windows:

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