In case if you are looking for solution of extracting the assignment of the Class data in SAP Using Standard Transaction, then below will be helpufl
Option 1: Use the Standard Code – CL6B – Object List
This gives you List of Classes and the objects ( materials) assigned to it
Option 2: Use the Standard Code – CL6BN – Object List
This gives you List of Classes and the objects ( materials) assigned to it in ALV Format.
The only challenge is in case if you need analzyse, the output when we save in exce l is not user friendly as it comes in a nested structure.
To avoid this we should try to extract the data from the SAP tables, will post as a separate thread.