High Quality Content by WIKIPEDIA articles! Archive Utility (BOMArchiveHelper until Mac OS X 10.5) is the default archive file handler in Mac OS X. It is usually invoked automatically when opening a file in one of its supported formats. It can be used to create compressed ZIP archives by choosing "Create archive of `file`" (Leopard: "Compress") in the Finder`s File or contextual menu. It is located in /System/Library/CoreServices/Archive Utility.app in 10.5 and later, and /System/Library/CoreServices/BOMArchiveHelper.app in 10.4. Prior to Archive Utility`s inclusion in Mac OS X v10.3, beginning with Mac OS 7.6, Apple bundled the freeware StuffIt Expander with the operating system.