Hello,

To end collaboration on multiple files at once in Box, follow these steps:

Log in to your Box account and go to your All Files page.
Next to the name of the folder from which you want to stop collaborating, click the ellipsis ( … ).
From the menu that appears, select More Actions.
Click End Collaboration.
This will remove you as a collaborator from the specified folder. If you encounter any issues, feel free to submit a support case to Box for assistance.

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Best Regards

Esther Smith