LibreOffice - Free, Open Source Office Suite

LibreOffice is a free alternative to other office suite software such as Microsoft Office. It includes everything for home and business including a Word Processor, Spreadsheets, Presentations and more.

While not on the same level of polish compared to Microsoft Office, it still holds up on it's own for personal and business use. LibreOffice has recently received funding from the European Union so expect improvements for this software in the future.