==OpenOffice Extensions==

Extensions in OpenOffice extends the capability of the OpenOffice program. Extension can be for OpenOffice Writer, Calc, Presentation, Database or for the core OpenOffice. For OpenOffice writer, there may be extensions that extends the dictionary feature of OpenOffice so that user can use a French dictionary. Similarly there may be extensions that adds extra grammar features. An extension for Calc might do a complex calculation like mortgage calculation or filter data in certain way.