Loading large grd files takes a long time, I see they load as polygons. I find the data crunches much faster as centroids. Please add "load as centroid" as input option (same as mapinfo "tab" files).
Also, would be great to load as integer (or select data type), since there are often too many decimals.
Last, but not least, the ability to export as grd or grc would be great since there are other platforms that use these files.
Thanks!
Gary