Go-OO is a fork of OpenOffice that has quite a few impressive features which really ought to be in official OO, but for some reason or another aren t, such as support for OpenXML, better Microsoft Binary support, Excel VBA macros, Visio diagrams and Word Perfect Graphics support. It also boasts significantly better start times -- at least on our poorly equipped test machine.
Better interoperability
Go-oo has built in OpenXML import filters and it will import your Microsoft Works files. Compared with up-stream OO.o, it has better Microsoft binary file support (with eg. fields support), and it will import WordPerfect graphics beautifully. If you are reliant on Excel VBA macros - then Go-oo offers the best macro fidelity too. If you expect your spreadsheets to calculate compatibly, or you get embedded Visio diagrams in your documents, you ll want Go-oo.
Better functionality
Go-oo's user interface is more familiar, with lots of small pieces of polish. We have built-in (working) multimedia integration on Linux, a beautiful solver component, and your Chinese should look sane. We also integrate with your system better by default: eg. enabling native file-selectors on Linux.
A Faster application
From first-time startup, where we sort I/O to reduce seek cost, to a highly optimised second start software and a systray quick-starter on Linux we are faster. We use less memory than up-stream, we link faster, use better system allocators, and don t waste so much time & memory in the registry. Go-oo performance is hard to beat.
Faster code integration
Contributing code to go-oo is simple, and fast, following the traditional hackers process of peer code review: just mail patches to the mailing list, or when we get used to your code - commit your patch immediately to HEAD ooo-build: no CWS, no hours of tagging, paperwork, no specification, no hassle. Of course - if your patch sucks - expect to hear how it can be improved.
Go-OO offers all the features of the official OpenOffice plus additional features such as:
1. OpenXML / DOCX support
2. OpenXML / XLSX support
3. OpenXML / PPTX support
4. SVG support
5. 3D transitions
6. Rich fields support
7. Calc solver
8. Improved Excel interoperability
9. VBA support
10. GStreamer integration
11. Mono integration
12. Text Grid rendering
13. MS-Works import
14. Improved EMF rendering
15. WordPerfect Graphics import
16. T602 import
17. much more...

The license of this software is Freeware, you can free download and free use this office suite software.