This displays a contextual menu next to the file you want to unlock. The context menu for an opened file displays: · Unlock the Locked Properties on the File Use the Context Menus to Unlock Files — Apple Support Communities May 15, 2023 — On a Mac with Finder, if a file has both Read/Write access and Lockable access, you can use both operations to unlock the file—the other one must be applied for locking to work properly. You must set all files for writing, including those for writing locked files, before using this method.—Apple Support Communities May 15, 2023 — On a Mac with Finder, if a file has both Read/Write access and Lockable access, you can use both operations to unlock the file—the other one must be applied for locking to work properly. You must set all files for writing, including those for writing locked files, before using this method.—Apple Support Communities Locking and Unlocking Files — Mac OS X Hacks May 15, 2023 — When you right-click on a locked file, it displays a dialog box where you can set which properties that are available. If all of its properties are locked, the file cannot be opened with other applications. You are also able to choose whether the file can be edited by anyone. If the files are not locked (or any of its permissions have been changed), the right-click menu lists the contents of the file. — Apple Support Communities Locking and Unlocking Files — Mac OS X Hacks May 15, 2023 — Click the Lock/Unlock button on the toolbar to open a dialog box to choose how you like to unlock the file—the other option must be applied for unlocking to work properly— and if you don't select a lock option you can't remove the file from Finder.—Apple Support Communities Locking and Unlocking Files — Mac OS X Hacks May 15, 2023 — A dialog box displays in Finder when you double-click or right-click a file in which you want to unlock it. To unlock the file, go back to the File menu with Option (Command), then choose Open… . Open… will display a dialog box with options. The default lock options should be good enough for most files.