Thou shalt have no other gods before the ANSI C standard 1502

Hm, no, I think some of these tools can also output in MS Office formats. I'm pretty sure I tried an experiment a while back, in which a Word user sent me a document, and I edited it with OpenOffice and sent it back, and he was able to open it again in Word. (I guess that doesn't actually guarantee that it was saved in Word format, since I suppose Microsoft is capable of writing software that deals with OpenOffice formats, and they might do so if there was a business advantage to be had that way.) I think I've been told that this also can work with documents originally written with OpenOffice, if they're saved in "MS Word format" rather than OO's native format.

Well, you and I probably agree that for a format to be regarded as "standard" there should be a publicly-available spec that at least can be (and preferably is) used by more than a single company. But I'm not sure that's what everyone means by "de facto standard". My turn to say "I don't know how to express this better" ....

-- B. L. Mbuttingill ObDisclaimer: I don't speak for my employers; they return the favor.