LArc

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File Format
Name LArc
Ontology
Extension(s) .lzs
Released 1988

LArc (not to be confused with LHarc) is a compressed archiver program for DOS. It was developed by Kazuhiko Miki, with Haruhiko Okumura and Ken Masuyama. Its native file format is sometimes called LZS. It uses generalized LHA format, and was possibly the originator of it.

See LHA for more information relevant to LArc format.

Compression schemes

ID Description and remarks
-lz2-
-lz3-
-lz4- Uncompressed
-lz5- LZ77/LZSS, 4k window. Almost identical to "SZDD" used in MS-DOS installation compression.
-lz7-
-lz8-
-lzs- LZ77/LZSS, 2k window

Identification

One of the listed 5-character LArc compression scheme IDs appears at offset 2.

Software

(Wanted: Other versions of LArc.)

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