ZPAQ

Writable

archive

ZPAQ is an open source command line file archiver developed by Matt Mahoney.

Identify it

Extensions.zpaq.cfg
MIME typesapplication/x-zpaq
Signatures
376b5374 at byte 0 (ZPAQ Archive Format variant 1)
7a5051 at byte 0 (ZPAQ Archive Format variant 2)
PRONOMfmt/1097
WikidataQ47487560

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Sources

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

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