如何在C＃中从模板创建* .docx文件

I have a working ASP.NET MVC web application to manage projects and customers. Now I want to generate a word file for some customers. In this file should be displayed some data about the customer. Every generated file should have the same data and the same design. So I want to craete a new Word Template with the fields and want to fill the placeholders programmatically.I have a working ASP.NET MVC web application to