How to repeat words in Microsoft Word (XML Mappings)

I know I usually only do Power Platform, but Microsoft Word is bound to be in your project needs someday, or combining with Power Automate, so I figured why not? Ever had the request to have certain words repeated, lets say in a header or footer? It can be anything, a date, name, product title, Business Unit etc etc. This can be achieved using XML Mapping in Microsoft Word. To get to the XML mapping, you must first have the Developer Tab activated.