Firmware updates for the PS3 were distributed through a file named PS3UPDAT.PUP. This file contained the necessary data and instructions to update the console's firmware. When users downloaded this file from Sony's official website, they were essentially downloading a package that would update their PS3 system software to the latest version. The process of updating was straightforward: users would save the PS3UPDAT.PUP file on a USB drive or a blank Blu-ray disc, insert it into their PS3, and then follow the on-screen instructions to complete the update.