Privilege required for connecting with MS-EXCEL other than the Risky Data Admin

Hi Everyone

Earlier I had given  Data Admin Privilege for Connecting Excel with Hana to a User(say TestUsr).

But later on I came to know that Catalog Read and Data Admin  Privileges allows the TestUsr to read and delete all objects from _SYS_BIC(irrespective of the User who created it).

Now I have removed Data Admin Privilege from this TestUsr Role.

My Requirement is that which Privilege should I give this to TestUsr Role for connecting with MS Excel.

Thanks & Regards

Nagarjuna