Dear Mohamed Sobhi Kazmouz,
Good day!! Thank you for posting in Microsoft Community. We are happy to help you.
May I know if you meet any error message when you cannot edit file in Office desktop app on Mac? If yes, could you share a screenshot of the error?
If the error message says your account can only view document but it doesn't allow editing on Mac. I would like to suggest you go to check if your account has the license called The latest desktop version of Office.
You can check it by signing in Microsoft 365 Subscriptions page via this link https://portal.office.com/account/?ref=MeControl#subscriptions check if you have the license, as shown below:
- If you don't have this license, please contact the Microsoft 365 Administrator in your school/organization, because they have the necessary permission to assign license to you. Reference: How do I find my Microsoft 365 admin? - Microsoft Support
- If you confirm that you have that license, you may try following steps for further troubleshooting:
Use the License Removal tool to remove Office license files from Mac and then activate Office apps again:
1. Download the license removal tool.
- Open the .pkg file from your Mac's Downloads folder.
- Select Continue and follow the prompts in the setup wizard.
- When you're ready to complete the license removal, select Install. You may need to enter your Mac's local admin account password.
After the tool successfully removes licenses, select Close.
- Reboot your Mac. Now open any Office app and sign in to activate with the email account associated with your Microsoft 365 for Mac license. Check if you can edit files.
If my understanding of the scenario is not consistent with yours, feel free to point it out.
In the meanwhile, may I know if the issue happens when you try to edit a specific file in Office desktop app on Mac? Can you edit other files?
Could you please provide some screenshots of the issue? Please kindly provide the requested information to let us work further.
Thanks for your time and cooperation! Hope you have a nice day!!
Best Regards,
Tina