The Quick Look service in OS X is useful for previewing images and other file contents, either directly in the Finder, or in programs like Mail where you might encounter images and documents as message attachments. While you might consider opening a file or attachment directly in the program you have assigned to handle it, you can use Quick Look to take a peek at a file, which can be handy if you only need to look up a word or two in it. Continue reading ⇒