c#数据集到Xml，节点重命名

    DataSet ds = GetExcelToXml("test.xls");

    string filename = @"C:\test.xml";

    FileStream myFileStream = new FileStream(filename, FileMode.Create);

    XmlTextWriter myXmlWriter = new XmlTextWriter(myFileStream, Encoding.Default);

    ds.WriteXml(myXmlWriter);

    myXmlWriter.Close();
    DataSet ds = GetExcelToXml("test.xls");