The error below occurs when trying to export lists to Excel from APS:
Error: Unable to cast COM object of type 'Microsoft.Office.Interoop.Excel.ApplicationClass' to interface type 'Microsoft.Office.Interoop.Excel._Application'. This operation failed because the QueryInterface call on the COM component for the interface with IID.....
This issue is related to Microsoft Office and requires a repair or uninstall/re-install of Microsoft Office. If you are an APS Online client, please raise a new case online and reference the title of this article. Otherwise, please contact your IT provider to resolve this error.