Dear IhabKhiri,
Good day. Thank you for posting to Microsoft Community, and we are happy to help you.
As per your description, when you move the file to iCloud and it can’t be opened anymore, even though you download it, and it still has the issue. And it gives you an error massage.
According to my research result about the error message you provided, it seems to be a problem related Microsoft Intune.
To narrow down the issue and assist you further, could you provide me the following information?
- Please contact your admin and confirm whether they start the protection policy.
- Please check if other files saved in iCloud have the same error massage.
- Ask your colleague and confirm if they have the same issue.
Your patience and cooperation will be greatly appreciated.
Sincerely,
Claire | Microsoft Community Moderator