Windows 10 Home, 20H2, build 19042.630 and MS Office Professional Plus 2016, v2011 (Build 13426.20274, Click-to-run), Current Channel.

I am running both Windows and Office as a local account and not signed-in to online versions of either.

All Office apps work fine but I find the white ‘paper’ background too dazzling. I would like to change this colour for viewing purposes only and I do not want this colour to be printed out.
I have looked in File / Options but see no way to customise the ‘paper’ colour.

Can anyone tell me how to change it?

Thanks in advance.