Oh. That level of compatibility is very hard. Consider that, with much more resources and time and on a more mature framework (desktop development), OpenOffice still hasn't achieved 100% compatibility with MS Office.
This is not our current focus. We believe that, for editing those formats, the desktop applications are much more suited. OpenGoo provides a way to create and edit simpler -HTML- documents. It is also our belief that these kind of -simpler- documents will be serving more than 90% of user needs in the near future.
We plan on improving online edition too, as soon as we can get our hand on that again.
Also, at this point, we are focusing a lot more on the overall functionality of OpenGoo, making it a solution for not only document management and productivity; but project management, collaboration, and team communications as well.