How about DOCX? (the Vista and up default for Word)
I have a plug in for XP that works.
Generally Greg, you'd use OpenOffice under Linux.
It also works on Windows.
Believe me, there are work-arounds for almost everything that Windows offers.
People have found out these problems and written code to enable a solution.
This is the beauty of open-source software, you aren't depending on only the developers of the propretiary software, anyone can write this stuff, given a few simple rules and knowledge of how it works.