OK, so I've had a look at the document in your link. There's nothing special about it that suggests it has any serious formatting problems. Indeed, the minimal formatting there can be an aid to those who want to do their own reformatting. Whilst I gather you don't like what's there, you also give no indication of what you want to do with it.

Assuming you already have some suitable Styles defined, a lot of your reformatting could probably be done via a few Find/Replace operations. But, since I don't know what you want to do or what preparatory work you've done, I don't really know. If you want help, you need to do more than bleat about what you're working with.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]