Documentation

File extraction guides for macOS

Learn how to open and extract every archive and disk image format on macOS. Step-by-step guides covering built-in tools, Terminal commands, and MacPacker.

Popular formats

Archives

ZIP.zip

ZIP is the most widely used archive format on macOS. It supports lossless compression and is natively handled by Finder and Archive Utility.

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RAR.rar

RAR is a proprietary archive format known for high compression ratios and multi-part archives. macOS has no built-in RAR support.

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7z.7z

7z is an open-source archive format with excellent compression. macOS has no built-in 7z support.

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TAR.tar

TAR (tape archive) bundles files without compression. Often combined with GZ, BZ2, or XZ for compressed archives. Natively supported via Terminal on macOS.

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CAB.cab

CAB (Cabinet) is Microsoft's archive format used in Windows installers and updates. macOS has no built-in CAB support.

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CPIO.cpio

CPIO is a Unix archive format used in RPM packages, initramfs images, and macOS PKG payloads. Supported natively on macOS via Terminal.

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XAR.xar

XAR (eXtensible ARchive) is Apple's archive format used internally for PKG installers and Xcode distributions.

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SIT.sit

StuffIt was the dominant Mac compression format in the Classic Mac OS era. Legacy format still found in old archives.

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SEA.sea

Self-Extracting Archives were common in the Classic Mac OS era. They contain both the archive data and extraction code.

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ARJ.arj

ARJ was a popular DOS-era archive format. Rarely used today but still found in legacy archives and retro computing.

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LHA.lha

LHA (also known as LZH) is a Japanese archive format popular in retro computing and the Amiga community.

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LZH.lzh

LZH is an alternative extension for LHA archives, particularly common in Japanese computing.

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LZX.lzx

LZX is an Amiga archive format. Very rare today, primarily found in Amiga software preservation.

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CHM.chm

CHM (Compiled HTML Help) is Microsoft's help documentation format. Contains compressed HTML, images, and an index.

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Disk Images

Compression Formats

Installers

Get MacPacker

v0.15.1 · macOS 14+
$ brew install --cask macpacker

App Store updates may lag a few days behind direct downloads due to Apple review.