Surfer grid File Format
Format nameSurfer grid
Format type Mapping and GIS 
DescriptionSurfer gridded data file
File extension.grd
File typeASCII
Supporting organisationGolden Software
Web site address http://www.goldensoftware.com/ 
Contact name
Contact email
OwnershipProprietary
Assessed current statusIn use

Programs that support the Surfer grid file format
Program
Category
Operating system
 ESDAT  Geoenvironmental database systems WinNT, Win2000, WinXP
 GW Contour  Groundwater modelling WinNT, Win2000, WinXP
 TWODAN  Groundwater flow (2D) Win95/98, WinNT
 Visual BlueBird /SPLIT  Groundwater flow (2D) Win95/98, WinNT, Win2000, WinXP
 Voxler  Plotting (3D visualisation) Win2000, WinXP

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