Doc Translator says it “Instantly translates and preserves the layout of Office documents using the Google Translate.”
It’s not working for me right now, but it may be because it’s so new, and such a cool idea, that it’s getting overwhelmed with people who want to try it out.
It could be a useful tool for times like last year when my ESL students wrote informational fliers for their neighborhoods when the H1N1 flu first hit. They can put their energy into writing a document in English, make it into a nice flier, use Doc Translator to translate it (and maybe tidy it up a bit), and then upload it to the web using Crocodoc (as well as printing it out).
If it works, of course. Let me know your experience.