Mac OS X 10.6: Previewing files with Quick Look
Using the Quick Look feature, you can quickly view the contents of a file or folder without opening it or starting an application.
To preview items with Quick Look:
Select one or more items to preview.
Click the Quick Look (eye) button, or press the Space bar.
A Quick Look window opens with the first item displayed. To enlarge the window, drag the lower-right corner or click the double arrows to switch to full screen view.
If you’re previewing multiple items, click the buttons along the bottom to move from one item to the next or to view a “contact sheet” of all the items.
If you like, continue previewing items by clicking their icons in the Finder. The Quick Look window displays each item as you click it.
To close the preview, click the Quick Look button (or press the Space bar) again, or click the close (x) button in the Quick Look window.
The content you see depends on the type of item you’re previewing. If it’s an image, you see a smaller version of it. If it’s a text document, you can read the text and scroll to see more. If you select several items, they appear as a slideshow.