As someone who works with confidential information stored as attachments within a sheet, I may need to share the sheet with others while strictly controlling access to attachments. Ideally, viewers should be able to see the sheet content but should not be able to take screenshots, download, or save any of the attached files. Even if someone is granted edit access, there should be restrictions in place to prevent the download or extraction of protected files. A feature that enforces strict viewing-only access—without any download, copy, or screenshot capabilities—would be extremely valuable for protecting sensitive information.
