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Format

SelF-eXtracting LHA/LZH Compressed Files

Summary

Name
SelF-eXtracting LHA/LZH Compressed Files
Identifiers
PUID: fmt/1558
Format type
Text (Structured)
Description
SelF-eXtracting LHA/LZH compressed files is an archive format for the Commodore 64 and 128 consisting of files compressed in the LHA format and appended to a program to extract them, so that the archive and its extractor is self-contained and no other program needs to be downloaded or installed in order to extract the archive. It is a sucessor of SDA format with an addition of the extractor is cross-compatible between both Commodore platforms (C-64 and C-128).
Note
http://fileformats.archiveteam.org/wiki/SIFF https://fileinfo.com/extension/son https://wiki.multimedia.cx/index.php/SIFF
File extensions
sfx
Source
The National Archives and Records Administration / The National Archives and Records Administration

Internal signatures

SelF-eXtracting LHA/LZH Compressed File

Note
BOF; Offset: 3370 - 3410; Magic bytes: C64/C128 SELF EXTRACTING LHARCHIVE

Byte sequences

Min Frag Length
Absolute from BOF
Offset
3000
Max offset
700
Byte Sequence
4336342F433132382053454C462045585452414354494E47204C4841524348495645
Endianness
None

Changelog

  • Updated in V115

    Release date
    15 November 2023

    SelF-eXtracting LHA/LZH Compressed Files: Modified values in Indirect Offset Location and Indirect Offset Length from 0 to null as part of a project to match PRONOM data with the xsd standard. Max-offset modified for BOF signature to allow for more exact signature identification. Submitted by Digital Preservation Department, The National Archives (UK) (UK).

  • Added in V100

    Release date
    16 December 2021

    SelF-eXtracting LHA/LZH Compressed Files: Signature researched and samples provided by The National Archives and Records Administration.

    SelF-eXtracting LHA/LZH Compressed Files: Full entry added. Submitted by The National Archives and Records Administration.