Sometimes, when you want your reports to open up in SAP Advance Analysis for Microsoft Excel, it opens up in Internet Explorer.
This behavior may occur if Internet Explorer is configured to host documents for Office programs that are installed on the computer.
This can be fixed by 2 ways – Manual or Automatic
Open up the below link and click on the “Fix It” button under “Fix it for me” section.
Open up the same link and follow the steps under “Let me fix it myself” section.