Error in Excel Application Scope for Cast COM object

Hi All,

I am getting the below error while I am using Excel application scope.
I am closing all workbooks after reading/Writing.

I am also using Execute macro activity for executing few macros.
Please refer below error message:

Excel Application Scope - read each file: Unable to cast COM object of type ‘System.__ComObject’ to interface type ‘System.Runtime.InteropServices.ComTypes.IConnectionPointContainer’. This operation failed because the QueryInterface call on the COM component for the interface with IID ‘{B196B284-BAB4-101A-B69C-00AA00341D07}’ failed due to the following error: The requested object does not exist. (Exception from HRESULT: 0x80010114).

I have already given delays and kill processes for excel.
Usually the error occurs while executing the process from orchestrator.

Please Help!