That's what I did, new desktop just over 2 years ago. I don't know whether I paid extra for the Microsoft suite, but I don't pay any annual fee.Started off years back buy a package with your PC and that was it done and dusted.
Google Sheets and Docs for free are very similar.
I noticed XL does not have a COSEC function, but Sheets does (CSC). Not that it's a problem, use 1/SIN instead.
