Got me curious too. Answer Just a google search away. https://stackoverflow.com/questions/11298855/how-to-unpack-and-pack-pkg-file https://stackoverflow.com/qu

Got me curious too. Answer Just a google search away. https://stackoverflow.com/questions/11298855/how-to-unpack-and-pack-pkg-file https://stackoverflow.com/questions/11298855/how-to-unpack-a...