Hi ​@cliu, 

Welcome to Box Community, and we’ll gladly provide the details to access the shared content. 

Once the shared link has expired, the owner is capable of recreating a new link and re-do the same shared link access type. 

Creating a link to share:

1. In your Box files view, hover your cursor over the row of the file or folder you wish to share.
2. On the right, click (Create and) Copy Shared Link (). 

   The Shared Link window opens.  The link automatically copies to your clipboard.

   

That's it.  You can now paste that link into the app of your choice -- email, messaging, and so on -- to share your content.

To set the shared link access accordingly, you can visit these helpful articles: 

• Create Shared Links
• Configuring Individual Shared Link Settings

Thanks for posting!