Oh, I see. I had thought wordpad was a text editor like notepad. But looking it up in wikipedia I see it is actually a basic word processor that supports fonts. It does say however in wikipedia that wordpad does not support footnotes. I think that may mean that if I were to paste the document into wordpad I would lose all my footnotes, and I have quite a number of them...

Earlier you had suggested that I could have created a special style for the Hindi paragraphs. Couldn't I create such a special style at the end of 'Part 1'; a style that would work with the style settings in my file 3. Is there a way I could take this sort of approach?

That is correct. After round-tripping via WordPad, you'd have no footnotes. However, you could then copy them back into the modified document from your original. You'd also lose heading Styles and the like, too, though their formatting would be retained.

Whichever approach you take with what Charles aptly described as botched documents, there's going to be some pain. If you were to provide more details on what you said about "when I implemented it in my actual document 'Part 1', it created a problem", it might be possible to help you work around that.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]