OpenXml读取word在保存就成了xml文档，求如何保存为word文档？

[爱在今世]

RT，

string path = "d:\\模版.docx";
            WordprocessingDocument doc = WordprocessingDocument.Open(path, true);
            FileStream fs = new FileStream("d:\\结果.docx", FileMode.Create);
            doc.MainDocumentPart.Document.Save(fs);

然后这个结果.docx里面是个xml文档，求如何保存为word啊？

[zhqzalzsn]

doc.MainDocumentPart.Document.Save()

[zhqzalzsn]

System.IO.File.Copy(sourceFile, objectFile, true);