I am totally new to GIS software.
I would like to consolidate 205 ASCII GRDs files (the file format of Golden Software's "Surfer") into a single big GRD file or just a big matrix of (about 2400 rows by 2400 columns) I can manipulate within Excel.
Each of the 205 GRDs contain mean windspeed (32 bit float) information of 150x150 cells. I could import these GRDs one by one in Excel but I thought there could be a faster way to do this (I actually have 5 other parameters in this same GRD format).
I was able to put these 205 GRD files in one Arcmap layer using the "Mosaic to New Layer" tool but I didn't find a way to export this layer to a single GRD. I haven't tried the same in QGIS.
Any ideas ?