"Easy PKG Extractor" is a specific tool (often a GUI front-end) designed to unpack these PKG files. By default, a PKG is an encrypted archive. You cannot simply open it with WinRAR or 7-Zip. The extractor uses specific keys (keys) to decrypt the container, allowing you to see the internal files—such as game assets, executables (EBOOT.BIN), and movie files.
Your system must be on an exploitable firmware (such as 5.05 or 6.72) and actively running a homebrew enabler (HEN). easy pkg extractor ps4 672 download full