Tylor, after looking around the consensus seems to be that these are remnants of older versions of the site, and likely now refer to the Ultimate Vocab Decks, each which comes with a pdf file that separates the vocabulary of their respective anki files into different groups.

You can find them in the downloads page (hover over Profile to find it. Sorry, I tried linking it but it’s not working)

• This reply was modified 2 years, 11 months ago by  Jerispevio.
• This reply was modified 2 years, 11 months ago by  Jerispevio.