Dana recently bought a new Dell computer, but he needs an office program suite. Leo recommends Libre Office. Leo says it's an excellent, open-source office suite, and it will save in Microsoft Office format files. An excellent option. And it's perfectly safe to download and install. It also has all the capabilities of Microsoft Office as well, and you don't have to renew it. It's free.
There is also a free online version of Microsoft Office: it's a web version. All you need is a Microsoft account. It's at office.live.com.