Yes, this works, thank you.
What I noticed is that suppressed cols are in the preview and print visible.The same is for SavetoXLS.
Further, I merged some cells and when I export to Excel (SavetoXLS) these cells are no merge anymore and the value is put in every cell I merged. So if I merge row 0 and coll 0 to10 the value in my grid or preview is put in every 10 cells in row 0.