Close any existing excel session
Open your sap logon 
Select BW - Production - WBP
Enter the transaction code RAAOE and press "Enter"
Choose "Client Only" and click on the clock icon to launch BW Analysis
You are now in eXcel, the next steps are exactly the same as when you open BW Analysis via eXcel.
to open directly a core query choose the option : Query then select it among your roles and run it.
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