In reply to Alex Roddie:
> To the OP: 'Save as' is your best option, if you simply copy and paste into a new document you will lose information such as custom page setup and header/footer, if you have used these features.
Yeah, that's true, but it'll keep all the altered words, which is sometime the main thing. Losses depend on how complicated the document was in the first place, but document formatting is relatively simple compared to having to re-type hundreds or thousands of words, that you've sweated over to get right!