Commonly known simply as OpenOffice, is an office application suite available for a number of different computer operating systems. It is distributed as free software and written using the GTK. It supports the ISO/IEC standard OpenDocument Format (ODF) for data interchange as its default file format, as well as Microsoft Office formats among others.
OpenOffice.org was originally derived from StarOffice, an office suite developed by StarDivision and acquired by Sun Microsystems in August 1999. The source code of the suite was released in July 2000 with the aim of reducing the dominant market share of Microsoft Office by providing a free and open alternative; later versions of StarOffice are based upon OpenOffice.org with additional proprietary components
For Windows
http://openoffice.bouncer.osuosl.org/?&product=OpenOffice.org&os=winwjre&lang=en-US&version=3.1.0Paste the following in terminal to Install OpenOffice 3.1 on Ubuntu 9.04 :
echo -e ‘echo “#PPA openoffice-pkgs
deb
http://ppa.launchpad.net/openoffice-pkgs/ppa/ubuntu $(lsb_release -sc) main” | sudo tee -a /etc/apt/sources.list.d/ppa.list
gpg –keyserver keyserver.ubuntu.com –recv 247d1cff
gpg –export –armor 247d1cff | sudo apt-key add -
sudo apt-get update
sudo aptitude -y safe-upgrade
sudo aptitude -y dist-upgrade
‘ > ./oooupgrade.sh
sudo sh ./oooupgrade.sh && rm ./oooupgrade.sh
