You cannot publish files in Experience Design. You can only create prototypes and share them with other users.
What are you trying to publish as?
谢谢您的细致的讲解。Thank you for your detailed reply
What are you trying to publish as? I want to share designs with friends（想和朋友一起分享设计）
You can share designs with friends using the Share button in the upper right of the app. (您可以共享使用的应用程序右上角的分享按钮设计的朋友。)
You can also record a video of your prototype as you interact with it and send that to them (您还可以记录您的原型的视频，你与它交互和发送给他们)