Hi, I tried to open your file in GIS, and as you say, it can't be displayed. Have you tried download "The Geosoft Plugin for ArcGIS"?, I did it and now I can display the file on ArcGIS. Hope it works for you. Best Regards. PD. - Have you found a different way to display the file? - Link for geosoft plug-in http://www.geosoft.com/support/downloads/plug-ins/plug-arcgis Hi, I have problems in adding .grd file into ArcMap 10 while my coworker next to me has no problem. Please see attached files. I tried to rename the .grd to.asc and then convert it to raster using ArcTool Conversion tool with no luck. Any clue will help! Thanks. Winnie
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