Evening everyone, One of my clients has a large Excel file saved on his hard drive, but would like to back it up onto disk for safety's sake. When he tries to save it to disk, he gets an error stating "Data Too Dense". That's a new one to me! Usually if there's not enough room on the disk, you'd get an error saying "Not enough room". Anyone run into this before? If so, what do you do about it? Thanks, Sandy