We recently switched to Excel 2013 at work (had 2007 prior to that). Under Excel 2007, I could open up a window/file and then open another file in a separate window/instance of Excel 2013 and have them on two different screens. If I needed summation info from one file, I could highlight the cells and the sum would show in the lower status bar, when I would switch to the other Excel screen, the sum would remain/still show on the other screen.

With Excel 2013 if I try to do this, the sum disappears from the status bar when I go to the other Excel file. If I go back, it shows back up.

Is there a way to force Excel 2013 to continue to show this when I switch screens? I have tried what I did before (open one file, then go to start menu and open another Excel 2013 which opens a new/blank document, at which case I open the second file), but it no longer works.