Go-oo: A Lighter, Faster OpenOffice, With Extras
One of the main complaints about the open source OpenOffice.org suite of productivity applications is that the applications are slow compared to the comparable Microsoft Office apps. If you've run into this problem, and if you use OpenOffice but occasionally run into compatibility problems in sharing files with the Microsoft Office applications, try Go-oo. Even if you don't use Go-oo all of the time, it is good to use in conjunction with OpenOffice for several reasons. Here they are.
Go-oo is a fork of OpenOffice version 2.4, for Windows and Linux. It doesn't include some of the features found in OpenOffice 3.0 but it is much faster, and includes some compatibility features that can be handy to have around even if you primarily use the OpenOffice suite.