I haven’t delved much into the XI SDKs (yet), but I would not be surprised to find this “tables by universe” information missing. In v5 / v6 the universes were not stored as a blob, but rather all the specifics were stored in a series of tables. With that, it was possible to get to the “tables by universe” information, along with virtually everything else about a universe.
As Jean-Philippe suggested, you can use the Designer SDK to get this information. Actually, you will find a utility here that can provide that information and much more.
Dwayne Hoffpauir 
(BOB member since 2002-09-19)