That's why they won't make an Office for Linux - the ubiquity of Word and Excel is what keeps them dominant, not their operating systems.
Open Office comes bundled with most Linux versions. I seldom use that but the Graphic Image manipulation program (GIMP) is something I use all the time. Here is an example of something I made using the county by county returns for the last election:
Well, then they may lose control of the situation. Open Office, as of v3, is competitive and reads and writes Office-format files. It's not quite as polished and complete as office, but I'd say about 98%. Plenty enough to be competitive anyway. For example, I recently built a new box and loaded Open Office first, and haven't yet bothered to take the 15 minutes or so to load Orifice. It's been like three months and the 2% or whatever of deficiencies in Open Office haven't irritated me sufficiently that I would take even the 15 minutes to load Office and fix the problem.