When previews are enabled, the Special menu lets you quickly view information about files.
Select the file in the Special menu to view kind, UTI, and file size, creation date and modification date, image size for pictures, duration for songs, and image size and duration for movies.
Display the More Info submenu for additional information: you can view when a file was last opened and, in case it was downloaded or received as an attachment, where it was obtained from (URL, sender’s email address, message subject, ... ).