LibreOffice is a free and open source office suite, developed by The Document Foundation. It was forked from OpenOffice.org in 2010. The LibreOffice suite comprises programs to do word processing, spreadsheets, slideshows, diagrams, maintain databases, and compose math formulae.
To add the various LibreOffice components to your start menu on Windows:
$ 0install integrate http://repo.roscidus.com/libreoffice/libreoffice
To add the various LibreOffice components to your PATH:
$ 0alias soffice http://repo.roscidus.com/libreoffice/libreoffice
$ 0alias writer http://repo.roscidus.com/libreoffice/libreoffice writer
$ 0alias writer-web http://repo.roscidus.com/libreoffice/libreoffice writer-web
$ 0alias calc http://repo.roscidus.com/libreoffice/libreoffice calc
$ 0alias math http://repo.roscidus.com/libreoffice/libreoffice math
$ 0alias impress http://repo.roscidus.com/libreoffice/libreoffice impress
$ 0alias draw http://repo.roscidus.com/libreoffice/libreoffice draw
$ 0alias base http://repo.roscidus.com/libreoffice/libreoffice base