XIP

archive

XAR (eXtensible Archive format) is an open source file archiver introduced in Mac OS X 10.5.

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• libarchiveOpen sourcereads and writes · 2-clause BSD License
• PhotoRecOpen sourcereads · GNU General Public License
• Q215051Open sourcereads · GNU Lesser General Public License
• Xarreads and writes

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Documentation

• kaitai grammar: https://github.com/kaitai-io/kaitai_struct_formats/blob/master/archive/xar.ksy

Sources

• File Formats Wiki
• Kaitai Struct: xar
• PRONOM fmt/600
• Wikidata Q1093556
• File Formats Wiki

From Just Solve the File Format Problem (File Formats Wiki), Kaitai Struct format gallery, PRONOM, Wikidata. Updated 2026-10-24.

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