Unable to cast COM object of type 'System.__ComObject' to interface type ''. This operation failed because the QueryInterface call on the COM component for the interface with IID '{000208D5-0000-0000-C000-000000000046}' failed due to the following error: Library not registered. (Exception from HRESULT: 0x8002801D (TYPE_E_LIBNOTREGISTERED)).
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có thể do cài nhiều phiên bản office.
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gp: gở hết cài lại 1 phiên bản