OpenOffice.org (OO.o or OOo) is an office application suite available for a number of different computer operating systems. It supports the OpenDocument standard for data interchange as its default file format, as well as Microsoft Office '97-2003 formats, among many others.
OpenOffice.org is based on 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, open and high-quality alternative. OpenOffice.org is free software, available under the GNU Lesser General Public License (LGPL).
The project and software are informally referred to as OpenOffice, but this term is a trademark held by another party, requiring the project to adopt OpenOffice.org as its formal name.
