I just started using ArcGIS. I am going to make a model with engineering hydrodynamic software. Now I found a DEM to use, this DEM is in the format .img.
Does someone know how to convert this .img format into a .xyz format? Or another kind of format (ascii) which can be used in the software GUI to create bathymetry and grids? I have the ArcGIS 10.1 software installed.