清单文件仅由客户端(即Outlook或Word)使用，用于呈现该加载项(即URL，要显示的按钮，最低要求等).当前没有API将清单数据公开给外接程序实例本身.

The manifest file is only consumed by the client (i.e. Outlook or Word) for the purposes of rendering that add-in (i.e. the URL, buttons to display, minimum requirements, etc.). There are currently no APIs that expose manifest data to the add-in instance itself.