LibreOffice / OpenOffice
In the past I have informed people of the existence of free office software that fulfils most people's needs.
At the time, the software was called OpenOffice.org - a bit of a strange name with the ".org" at the end, but still, easy to find and remember.
What people may not know is that a few years ago the project split - most developers went to a new project called LibreOffice, whiile the official name and a few of the developers went to create a new project called Apache Open Office.
Apache Open Office is the official successor to the original openoffice.org. It is also dead.