Once extraction finishes, you will see folders like:
This refers to PlayStation 4 Firmware 6.72. This is a specific software version for the PS4. For a long time, FW 6.72 was the "holy grail" of PS4 modding. It was the last stable firmware where a reliable jailbreak (exploit) existed. Most homebrew tools, including PKG extractors, were compiled specifically to work with the keys found in FW 6.72. easy pkg extractor ps4 672 download full
Users search for the "full" version because many free extractors have limitations (e.g., they cannot extract large files, lack specific keys, or are outdated). A "full" version implies an unlocked tool with complete decryption keys for firmware 6.72. Once extraction finishes, you will see folders like: