If your PS3 is on the latest official firmware (OFW) 4.91 or higher, you cannot install arbitrary PKG files. You would need to downgrade (often impossible on later models) or wait for an exploit—which becomes rarer each year.
format and installs automatically from your "Download List" in the Network tab. Connection call of duty black ops 2 ps3 pkg download
[BO2] Is the PS3 store still online and can I buy BO2 from there? If your PS3 is on the latest official firmware (OFW) 4
A PS3 PKG file is a package file used by the PlayStation 3 console to install games and other content. PKG files contain the game's data, including the executable files, assets, and other necessary files for the game to run. When you download a PS3 PKG file, you're essentially downloading the game's installation package, which can be installed on your console using the PlayStation 3's built-in installation process. Connection [BO2] Is the PS3 store still online