A standard package format used for installing software on PlayStation consoles.
A compressed archive format. If your download is in multiple parts (e.g., .part1.rar , .part2.rar ), you must extract them to get the final .pkg file. How to Use These Files
Place all related .rar files in one folder and extract them using a tool like 7-Zip or WinRAR to produce a single .pkg file.
To install a .pkg file on a console, users typically follow these steps:
Move the extracted .pkg file to a FAT32 or exFAT formatted USB drive.