You can share any file with anyone outside the system. To do this, you need to open public access to the file and provide a download link that will be generated by the system.
Go to the file settings in the "Public share" section.
Click on the "Generate download link" button
You now have a download link for the file that you can share with anyone outside the system.
Having opened public access to a specific file, makes it unencrypted. You can revoke access at any time by clicking on the "Revoke access" button at the same menu