Fully compatible with Microsoft Office?

[Rodrigo López Dato]

For opening the occasional Word document it's great, but it has
nowhere near 100% compatibility to replace MSO in a production
environment, at least not one that deals with external MSO documents.
Of course, we would all be better off with open formats everywhere
(not necessarily ODF) but that's not gonna happen anytime soon.

So, what does this has to do with technical Ubuntu discussion? :)