I'm looking for an automated method to download all conversations of a Yahoo Group that someone has tried and that actually works today

Yahoo keeps changing the way Yahoo Groups is set up and I remember a few years back, it was a manual task to retrieve all Yahoo Group messages.
Now I see a few options (when googling) on line, but the question is which ones actually work and which ones pull down all the information including links, images etc.
So I wonder if anyone in this group has retrieved all conversations of a Yahoo Group successfully and if so, what format did it end up in?