Hi Fig,
Fair enough - I gained the impression from your previous posts that the document was constructed progrmatically. Presumably, then, you've used copy/cut and paste to import material from one or more other documents. However, I've never before seen (or heard of) a case where such a process resulted in Word inserting something that wasn't already there. As for:
I very much doubt that this has occurred. Rather, the issue is one of identifying what has been inserted that you don't want, so that it can be deleted. To that end, by all means do post a stripped-down copy of the document with a representative sample of problem paragraphs (the first couple of words from each should suffice).

BTW: Word 2007 does not use a proprietary format for its native docx/docm files; they're nothing more than a zipped collection of xml files. Change any such file's extension to .zip and you can access the contents with programs like WinZip.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]