.PKG File Extension

Package of compressed installer files used to install a software program; commonly used for installing software in Mac OS X; may be installed individually or referenced by an installer script included with the software.

Double-click the package to install the files. Right-click (Control-click) and select "Show Package Contents" to view the files stored in the package. Apple Installer is the built-in utility for opening PKG files included with Mac OS X.

File downloaded from Sony's PlayStation Store, an online store with games, movies, and demos for PS3 and PSP devices; used specifically for downloadable games, game updates, and demos; saved in an encrypted format that is only recognized by compatible Sony devices.

Packages downloaded from the PlayStation Store can be transferred to a PSP or PS3 via USB, Memory Stick, or a network connection.

Package created for Symbian OS devices; contains instructions that are required to create a .SIS file, including the vendor name, software dependencies, and application files to copy; stored in a plain text format.

PKG files are used to build a SIS file with the "makesis" command, which is part of the CreateSIS utility.

File created by CoCreate software programs, which are used for 3D modeling; contains the files for a 3D model in a compressed format; used to reduce the size of a model design for transferring over the Internet.

PKG files in Modeling 2005 or earlier use proprietary and CPIO (.CPIO files) compression. PKG files in Modeling 2006 and later use Zip compression.

NOTE: CoCreate OneSpace Modeling is now known as CoCreate Modeling. It was also previously known as OneSpace Designer Modeling and SolidDesigner.

Game data file used by Midtown Madness (MM) and Midtown Madness 2 (MM2) 3D racing games; saves a 3D model of a car; located within .AR game archives and can be edited with ZModeler.