You're unlikely to need regex for this. That said, without a sample document showing the kind of content you're trying to process, we'd only be guessing.

Can you attach a document to a post with some representative data (delete anything sensitive)? You do this via the paperclip symbol on the 'Go Advanced' tab at the bottom of this screen.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]