MEX file cannot be opened because the developer cannot be verified in OS X 10.15.2 and cannot be added to the authorization list.

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I have a MEX file and when I open it in OSX 10.15.2 Catalina, the system throws a message saying "cannot be opened because the developer cannot be verified".
It can only be opened while I disable Gatekeeper entirely. It does not work when I add the MEX files as exception using 'spctl --add'. 
Is there any way I can add the file to the authorization list without disabling Gatekeeper entirely?

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MathWorks Support Team
MathWorks Support Team el 31 de Jul. de 2023
Editada: MathWorks Support Team el 31 de Jul. de 2023
1. Check to see if the file is quarantined by running the following command in the terminal:
xattr /path/to/file
An entry “com.apple.quarantine” means the library has been quarantined
2. Remove this attribute by running the following command in the terminal:
sudo xattr -r -d com.apple.quarantine /path/to/file
3. Try to run the MEX file again

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