Found in Sierra, but seems to have fallen into disuse, and not found in High Sierra.
extended attributes
Found in Sierra, but seems to have fallen into disuse, and not found in High Sierra.
Details of where and how files and folders store their Finder Tag information. One of the few xattrs intended for the user.
An arbitrary text headline which can be attached by some creators to documents.
Sometimes used by creators to give a description of the file in plain text.
Gives the normal Finder name of the app which created or edited a file. Doesn’t give its path or signature, though.
Contains a binary date-timestamp for a downloaded file. Valuable for establishing the origins of files.
Records the original URL from which a file was downloaded. Valuable for establishing the origins of files.
Contains arbitrary copyright information which remains ‘sticky’ and is not stripped when most metadata are removed from files.
The Desktop and Finder illusions rely on files having a type and creator, and an icon association. These were kept in the Desktop Database, and are now the responsibility of Launch Services.
The Eclectic Light Company 