If Excel keeps showing Want to save your changes message, uninstall Printer driver and change default printer to begin with. More suggestions here.
Note: I will suggest changing the print setting when Save as PDF is set. Since you need to click on the Print or Save as PDF option every time you need to change the setting, using a Printer will only ...
We have a Konica c280 printer/copier, but I'm the only Mac user here. It always defaults to 2-sided printing, and I'd like to make the default 1 sided. But how do I do that? From the Print dialog from ...