Oğuzhan Öztürk
I am trying to achieve exactly the same as you. I can understand your metadata sheet perfectly - what I can't get to work is the creating of the groups in the spreadsheet itself as you are missing an essential step.
You have 4 queries/groups (PROJECT, SET1, SET2, SET3)
You are using the NAME column from PROJECT group You are using TASK_COUNT column from the other 3 groups.
You are only defining the PROJECT group in your Excel sheet ?
There is a step where you highlight columns in Excel and click Publisher->Repeating Group yes? Can you explain what you did here please? Did you highlight all 4 columns and make them just the PROJECT group for example?
Thanks very much