In Excel (2010), is there a way to insert an image as a spreadsheet background? I am not referring to the fill for an individual cell, but the background for the entire spreadsheet.
For example, in contrast to the typical spreadsheet background shown below in Fig.1, suppose you want to create a spreadsheet with the Hubble Ultra-Deep Field (HUDF) as the background as shown in Fig. 2. Obviously, the goal would be to retain all Excel functionality, etc., but is that even doable and if so, how is it done?