以2003格式导出Excel文件后,再用Excel2007打开时会提示,在Excel2007中另存为成2003格式再打开就不有会提示.

Question

    SaveFileDialog saveFileDialog = new SaveFileDialog();
            saveFileDialog.FileName = "123" + ".xls";
            saveFileDialog.Filter = "Excel 97-2003 工作簿(*.xls)|*.xls";
            saveFileDialog.FilterIndex = 0;
            saveFileDialog.RestoreDirectory = true;
            string szFileName = "";
            string szError = "";
            if (saveFileDialog.ShowDialog() == DialogResult.OK)
            {
                StreamWriter sw = new StreamWriter(saveFileDialog.OpenFile());
                sw.Close();
            }
如何能将提示去掉