A family of Microsoft word processing software products for creating web, email, and print documents.
Exactly, no macros will be saved in the document. I don't pretend to understand all the details in Jay's code, but I believe that document variables are being used to store some information in each document. This will be perfectly safe.
Of course, reinstalling an older version of Office will also work. Keep in mind that older versions will be out of support sooner or later, though.