What does iCloud mean when its says it’s ‘preparing’ a file? Seeing through the smoke and mirrors of iCloud Drive.
Finder
Getting the best out of Quick Look’s document previews and thumbnail icons, in the Finder and the Open File dialog.
Many files in macOS are more than just their data, and contain metadata in extended attributes. Does macOS know the true size of any file, taking into account those attributes?
Do you trust the file size given in Finder’s Get Info dialog? Perhaps you shouldn’t, as it only consider part of the file, its data fork.
The Desktop and Finder illusions are held together by Launch Services, which associates file types with apps. This and more now hinge on the UTI.
Like many other parts of the macOS human interface, its Services menus are heavily used by some users, […]
What metadata you are likely to encounter, where it is stored, and how you can view and edit it. A grand tour of the Finder’s Get Info dialog.
The Finder manages its tags, so changing the label of any tag is immediately reflected in all items using that tag. But what are null tags, and why are they so common?
Details of where and how files and folders store their Finder Tag information. One of the few xattrs intended for the user.
Records the original URL from which a file was downloaded. Valuable for establishing the origins of files.
The Eclectic Light Company 