Inspect Mac .pkg Package Installer Files
I just came across a really useful QuickLook plugin called SuspiciousPackage that lets you inspect those .pkg package installer files that so many Mac apps and downloads come in. Using this plugin, you can determine if an admin password is required, how many install scripts are in the package file, where the installation locations of files is going to be, and if a restart is required.
Installation is simple and like any other QuickLook plugin. Download the SuspiciousPackage QuickLook plugin and drop it into ~/Library/QuickLook/ and you’ll be good to go (restart the Finder if necessary).