Download & Install Suspicious Package 1.3
Suspicious Package requires OS X 10.9 (Mavericks), 10.8 (Mountain Lion), 10.7 (Lion) or 10.6 (Snow Leopard).
Once downloaded, if the disk image does not open automatically, double-click it in the Finder.
To install, drag the Suspicious Package icon from the disk image to the Library/QuickLook folder in your home directory. (On Lion, the Finder doesn't show your Library folder by default, but you can hold down Option and then use the Go menu to get there.) If you don't already have a QuickLook folder under Library, you can create one.
You may have to log out and log in again to get Quick Look to recognize the new plugin.