I know.
Download and install or reinstall Office 2016 or Office 2013 - Microsoft Office
That is a web page that tells me to
Sign in to download Office
Go to your
Microsoft account dashboard and if you're not already signed in, select
Sign in.
Which takes to the main Microsoft download site and asks me to log in. The link is
Microsoft account | Sign In or Create Your Account Today – Microsoft
I log in and end up at
https://account.microsoft.com/?refd=....microsoft.com