Error: Cannot force conversion of COM object of type "System.__ComObject" to interface type "Microsoft.Office.Core.IRibbonUI".

IRibbonUI" of interface type “Microsoft.Office.Core.IRibbonUI” cannot be forcibly converted from a COM object of type “System.__ComObject”. IRibbonUI". This operation fails because the call to QueryInterface on the COM component of the interface with the IID “{000208D5-0000-0000-C000-000000000046}” fails due to the following error: This interface is not supported (exception from HRESULT 0x80004002(TYPE_E_NOINTERFACE)).

Dear Herry,

when does this error occur? When you start up Excel?

Excel 2007 is reeaally old, do you have any way to upgrade to a recent version?