Never mind, macropod. Pecoflyer posted this link in another thread that explains it very well.

Jmaxcy, the point seems to be not that you must never cross-post, but that when you do you're asking more than one group of people to work on the same problem. Since all of us who answer questions are volunteering our time because we want to help, the result is that you take up the time of more people than may be necessary. So the writer of the above page says:

1) Post your question at one place first, and give them a few days to respond. If you don't get any reply then go ahead and ask elsewhere, but:
2) Always announce when you cross-post, so people know what they're getting into, and explain why.
3) When you get an answer, mark your question "solved" wherever you asked it (not just in the forum where you got the answer), so that others won't waste time on it.

This makes sense to me. In your case, you were asking for help from a different set of experts about a different aspect of the problem, so you might not think it was actually cross-posting but only looked like it. But given how experienced forumites feel about cross-posting, it's probably better, and certainly more polite, to write the question differently. In the Excel forum you were asking how to set up the problem; from the Word forum what you really want is more information on how to identify and copy the parts of the text that need to be transferred from the Q doc to the C doc.