This cabin layout resembles the realistic Lufthansa Airbus A340-600 even comes with the down stairs Lavs. This layout is for the payware pacx by TFDI.
These cabins are also the "Default" layout that's inside the Toliss A346.
To install download and install the CFG file to your PACX Airplane folder which is located here --> Documents\PACX\Airplanes
The best livery for this aircraft is listed below.