I was so glad you mentioned getting different results from your two downloads. After my request on October 25 was returned on October 27 with no data, I was despondent about their download service, but do go on to figure out a way to download the extremely bloated view of messages from the yahoo groups web site... and Files. And Photos. And Attachments.
I didn't find your message until November 21, and immediately sent of another request... which was not returned until November 28, but it contained the mbox format archives that you refer to, and the files from Files area.
Unfortunately, Attachments are not included in the downloads, but since I had already captured them, it is a matter of correlating them to make a decent archive.
Again, thank for the inspiration to try again.
