LibreOffice is a free productivity suite that includes word processing, spreadsheets, presentations, vector graphics and flowcharts, databases, and formula editing. If you don't want to pay for an Office subscription, this is a very capable alternative.
https://www.techspot.com/downloads/5131-libreoffice-productivity-suite.html?utm_source=dlvr.it&utm_medium=blogger
https://www.techspot.com/downloads/5131-libreoffice-productivity-suite.html?utm_source=dlvr.it&utm_medium=blogger