Download your new authentication in order to get to my Ms excel

Question

So I try to download the program Ms office which I bought 7 years ago the full product not the 365, I only changed the graphics card not the motherboard. Anyways now I need to authenticate so I got to do it and the stupid phone junk garbage ap never allows me to scan the code from the screen. Well one or the other either way you mine as well now be Broken Google bg sounds better than Microsoft anyways. How do I get the authentication from phone to computer when neither work together? Clowns for development teams way to go Microsoft. Must be something up in the Pacific Northwest wear nothing works and you all snort glue and fermeldahude all day or something.