You can usually score Microsoft Office cheap with student discounts or by hitting up sites that sell software licenses for less. Or just use free stuff like Google Docs or LibreOffice those are good enough for basic stuff, even if they don’t have all the fancy features.
I grabbed Microsoft Office from a site, and got a sweet deal on a lifetime license. It's legit and way cheaper than usual. I use it for school and work, and it's been solid. Check out the
Microsoft Office Professional Plus 2021 version there; it’s affordable and got everything you need!