There are many free alternatives to Microsoft Office such as Google Drive, iCloud, OpenOffice, and LibreOffice. Check out the links below for more information.
Google Drive https://drive.google.com
A web based cloud service that can store your files as well as create word documents, presentations, and spreadsheets.
• Google Docs
• Docs, Sheets, and Slides Help Center
• Overview of Google Docs
• Saving your Doc, Sheet, or Slide to the computer
Requires an Apple ID. Website base cloud service that can connect with your Apple devices which allows access to your email, calendar, iWork apps and more.
• Pages App
• Keynote App
• Numbers App
Open source/free ware application that allows users to create documents, presentation, and spreadsheets.
• How to install
• Writer Tutorials
Another open source/free ware application that allows users to create documents, presentation, and spreadsheets.
• Getting started
• Exporting/Saving as word doc
TextEdit Mac OSX
Built into the Mac OSX, text edit is a simple word processing program.
• Getting Started
• Save as a Word Doc
Similar to the Mac, Windows has a built in word processing program that Windows users can work with.
• Opening Notepad