Sometimes used by creators to give a description of the file in plain text.
High Sierra
A simple tool to list, in chronological order, all system and security updates. Runs on Sierra and High Sierra, and should be good on El Capitan too.
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.
Now provides complete details of security updates, and simple tools to check for and install any pending updates.
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.
Used to override the global mapping for any given file type, this reflects the Finder’s individual setting for a document.
Contains the legacy file type and creator information dating back to Classic Mac OS, plus 24 bytes of undocumented flags. Very common.
Running High Sierra? Do you keep your Photos Library on an external drive? Do you realise that backing it up using Time Machine is likely to be a waste of time?
The Eclectic Light Company 