Hundreds of emails put all into one 7Mb email????

[Outlook2k3Troubled]

I have not been able to get the archive function to work and wonder if this is what happened instead. I have one email that contains email after email all in text form as if it is one huge email itself. How am I supposed to reclaim these emails back into their own separate email files? I would obviously like to be able to repair this without having to manually extract my emails one by one. Any help would be appreciated!

Thanks