Bulk extract of decks?

Over the years, I've accumulated a lot of decklists on the site that were ideas, old decks I'm no longer running, etc. I'm at nearly 900. Before, this wasn't a problem, but with the new details in decks feature, I'm finding all those old non-built decklists are getting in the way of managing my inventory. I don't want to lose them, though. There's some cool stuff in there I may still want to build/update/reference.

Is there a way to bulk extract these lists into text? I'd hate to have to open them one-by-one, extract to text, copy/paste, go to the next one.

Thanks for any pointers...