It’s always difficult trying to work out how many users of particular software packages there are out there. Be that as it may, The Document Foundation, the body behind the open source LibreOffice suite, has made an attempt at estimating the suite’s users.
According to a report today in Le Monde Informatique, estime that the suite has 20 to 30 million users on Linux (many Linux distributions, e.g. Ubuntu and Debian, include LibreOffice as the standard office suite in their disk images. Ed.) and another 30 to 40 million users on Windows. Up to last autumn, LibreOffice had been downloaded 20 million times.