If Excel keeps showing Want to save your changes message, uninstall Printer driver and change default printer to begin with. More suggestions here.

If Excel is crashing or freezing when printing a file, check if there is an issue with the printer's driver, add-ins, ...

To fix the “Retrieving data, wait a few seconds” error in Microsoft Excel, start by waiting a moment and trying again. If that doesn’t work, reload the website ...