Conversion Documentation

Does anyone have any kind of actual documentation that has an explanation of
the conversions in Epicor/Vantage? I know they have descriptions, and
numbers, and most of the time we run specific ones when we are told to run
them, however I was just wondering if anyone knew of a document that better
explained them, what exactly they do, or possibly if someone had started
their own documentation about what they actually do.

Or do we assume the mystery is supposed to be there and we just accept
running them when told to run them?

Ned