Thank you for noticing that error on the wiki page. I just needed to add a space, that "ZIP" was part of the text to display, not the filename.
The oversized cards arent a huge visible difference. I have had a few people ask for over-sized cards for the smaller tables though. This just makes your hole cards, and community cards a "little bit" bigger than the default card size. Personally, I never thought it was enough difference to re-make the decks, but I sure like em now that I have used em.
Here is a visual example -
Smallest table size, Typical cards0 = 420x252
Smallest table size, XX cards0 = 490x294