nds in Z direction (km):  %f : %f\n'    ...
                     'Voxel edge length (km):             %f\n'         ...
                     'Voxel grid origin (km):           ( %f %f %f )\n' ...
                     'Voxel grid extents:                 %ld %ld %ld\n'...
                     'Coarse voxel grid scale:            %ld\n'        ...
                     'Size of vertex-plate list:          %ld\n'        ...
                     'Size of voxel-plate pointer array:  %ld\n'        ...
            