.pkg

For other uses, see PKG (disambiguation).

.pkg (package) is a filename extension used for several file formats that contain packages of software and other files to be installed onto a certain device, operating system, or filesystem, such as macOS, iOS, the PlayStation Vita, the PlayStation 3, the PlayStation 4 and the PlayStation 5.

• The macOS and iOS operating systems made by Apple use .pkg extensions for Apple software packages using the Xar format internally.
• PlayStation Vita, PlayStation 3, PlayStation 4, PlayStation 5 — used for installation of PlayStation Vita, PlayStation 3, PlayStation 4 and PlayStation 5 software, applications, homebrew, and DLC from the PlayStation Store^[1]
• System V Release 4 (SVR4) .pkg files are cpio archives that contain specific file tree structures.^[2] They are software packages that can be installed, removed and tracked using the pkgadd, pkgrm, and pkginfo commands. The SVR4-based Solaris, and the Solaris-based illumos, support that package format.^[3]
• Symbian use .pkg files to store configuration information used to generate .sis installer packages.^[4]
• BeOS Used .pkg files in the 90's as part of their software package platform. Be Inc. bought Starcode Software Inc. and acquired their packaging tools.^{[citation needed]}
• Apple Newton operating system used files ending in .pkg for Newton applications and software. As a result, when seen from the Mac OS X Finder, Newton applications appear the same as Mac OS X Installer packages, however they do not share their file format.^{[citation needed]}
• PTC/CoCreate 3D Modeling application use .pkg files to store model files. This .pkg file uses the zip file format.^{[citation needed]}
• Microsoft is said to use .pkg files for profile storage on Xbox Network.^{[citation needed]}
• L3 Avionics systems use some .pkg files for software updates.^{[citation needed]}

PKG

Filename extension	.pkg
Developed by	Apple Inc., Sony Computer Entertainment, Symbian Ltd.
Container for	Applications

See also

• List of software package management systems

References

1. ".PKG File". PSDevWiki. Retrieved 15 March 2015.
2. AT&T. "SYSTEM V Application Binary Interface" (PDF). SCO Group. Retrieved 16 March 2015.
3. Philip Brown. "How to make a Solaris package (pkg format)". Bolthole.com. Retrieved 11 October 2013.
4. Nokia Corporation. "Deploying an Application on the Symbian platform". Digia.com. Archived from the original on 2014-08-09. Retrieved 15 March 2015.