Xceed Docx返回空白文档

Question

菜鸟在这里，我想使用xceed docx将报告导出为docx文件，但是它返回空白文档（空）MemoryStream stream = new MemoryStream();        Xceed.Words.NET.DocX document = Xceed.Words.NET.DocX.Create(stream);        Xceed.Words.NET.Paragraph p = document.InsertParagraph();        p.Append("Hello World");        document.Save();        return File(stream, "application/vnd.openxmlformats-officedocument.wordprocessingml.document", "DOCHK.docx");请帮忙