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LHA

Readable

archive

LHA is a freeware compression utility and associated file format. It was created in 1988 by Haruyasu Yoshizaki, and originally named LHarc.

Identify it

Extensions	`.lzh.lha`
MIME types	`application/x-lzh-compressed`
Signatures	`2d6c68` at byte 2 (LHA File Format)
PRONOM	`fmt/626`
Wikidata	`Q368782`

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Open it

libarchiveOpen sourcereads · 2-clause BSD License
PhotoRecOpen sourcereads · GNU General Public License
Q215051Open sourcereads · GNU Lesser General Public License
ZipegOpen sourcereads · BSD licenses
LHAreads and writes
WinZipreads and writes · shareware
ALZipreads · freeware
B1 Free Archiverreads · proprietary license
WinRARreads · proprietary license

Convert it

No conversion recorded. One of the tools above may export it; search for a chain.

Documentation

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

Sources

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

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