摘要： 当从浏览器返回一个文件时,需要指定ContentType,以下是Office2007对应的值:"application/vnd.openxmlformats-officedocument.wordprocessingml.template" (for .dotx files)"application/vnd.openxmlformats-officedocument.presentationml.presentation" (for .pptx files)"application/vnd.openxmlformats-officedocume 阅读全文