你好，
请问现在尝试打开的文件是什么格式的？
建议你可以先尝试下这篇文档的方法，然后测试下是否可以帮助你打开这个笔记本：
https://support.microsoft.com/zh-cn/topic/%E5%AF%BC%E5%87%BA%E5%92%8C%E5%AF%BC%E5%85%A5-onenote-%E7%AC%94%E8%AE%B0%E6%9C%AC-a4b60da5-8f33-464e-b1ba-b95ce540f309
If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.