How to create a Book with Single Loop containing multiple dimension combinations

Hello Team, Need solution on the Book Creation. I am trying to create only one Loop, with two combinations example (E#Abc:U2#Xyz) and the Loop Type I have used is Comma Separated List.

In excel Export Item I have attached the CV also. Where it is not updated with my Entity and Customer, because I have passed them in the Loop Definition, together. While running the Book it is running at Top Level for both Entity and Customer.  Instead of Abc & Xyz.