A much older version of "SwitchAna.Lib" was also mentioned in this 2008 message thread:

https://groups.io/g/LTspice/topic/50176653 ("X046 Lib & Cmos Switchs Libs")

but it appears they did not successfully upload the library containing that and other files.

 

It looks like they may have uploaded the whole thing to a different Yahoo!Group which does not exist anymore.  There may be some hope of finding it again but don't hold your breath.  (At one time I downloaded the files from the extinct LTspiceDocs group, but I might not be able to find them today.)

 

That 2008 message thread also mentions "LTspicePlus", which I think was another large collection of user-contributed models and files to use with LTspice.  I think you can find LTspicePlus at the LTwiki website, here:

    https://ltwiki.org/index.php?title=Components_Library_and_Circuits

Scroll down to "New Updated Version".

 

I think LTspicePlus downloads as a self-extraction .exe file - so it is really a .zip file with self-unzipping code included.  Maybe that librarry contains all the missing information you seek.

 

Andy