c# doc转docx,docx转doc,doc和docx互转
aveFormat.wdFormatDocumentDefault;
//将wordDoc文档对象的内容保存为DOCX文档
doc.SaveAs(ref targetFileName, ref FileFormat, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing