Sunzip
From Just Solve the File Format Problem
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(Created page with "{{FormatInfo |formattype=electronic |subcat=Compression |released=1997<ref name="history">V. 1.12a, source → history</ref> |extensions={{ext|sz}} }} '''Szip''', AKA '''Sunzi...") |
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| − | '''Szip''', AKA '''Sunzip'''<ref>V. 1.11 | + | :''Not related to the sunzip utility by Mark Adler [https://github.com/madler/sunzip].'' |
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| + | '''Szip''', AKA '''Sunzip'''<ref>V. 1.11 DOS distribution → README.TXT</ref>, is a file compression utility and compressed file format. It was written by Michael Schindler. Due to changes in the program, there are actually 3 incompatible Szip formats<ref name="newreadme">V. 1.12a, source → readme</ref>: | ||
* the format used from v. 1.00 to v. 1.04; | * the format used from v. 1.00 to v. 1.04; | ||
* then, the format used in version 1.05X and its subversions (the "X" does not stand for anything; this is actually part of the version number<ref name="history" />); | * then, the format used in version 1.05X and its subversions (the "X" does not stand for anything; this is actually part of the version number<ref name="history" />); | ||
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== Identification == | == Identification == | ||
| − | Szip files start with {{magic|0x53 0x5a 0x0a 0x04}}.<ref>V. 1.11 | + | For v1.10+, Szip files start with {{magic|0x53 0x5a 0x0a 0x04}}.<ref>V. 1.11 DOS distribution → SZ_FORMT.TXT</ref> |
| + | |||
| + | The older versions of the format have no obvious signature, and are probably not easy to identify. | ||
== Software == | == Software == | ||
* [http://www.compressconsult.com/szip/ Homepage with downloads of several versions] | * [http://www.compressconsult.com/szip/ Homepage with downloads of several versions] | ||
| − | * [ | + | * [{{SACFTPURL|pack|szip_111.zip}} V. 1.11 DOS] |
| + | * [{{SACFTPURL|pack|szip112a.zip}} V. 1.12a Windows console] | ||
== Links == | == Links == | ||
Latest revision as of 14:32, 14 August 2021
- Not related to the sunzip utility by Mark Adler [1].
Szip, AKA Sunzip[2], is a file compression utility and compressed file format. It was written by Michael Schindler. Due to changes in the program, there are actually 3 incompatible Szip formats[3]:
- the format used from v. 1.00 to v. 1.04;
- then, the format used in version 1.05X and its subversions (the "X" does not stand for anything; this is actually part of the version number[1]);
- and then, the format used for version 1.10 (which came immediately after the 1.05Xs[1]) and above.
Contents |
[edit] Extensions
The author "recommend[s] using .sz for szipped files and .tar.sz or .tsz for szipped tarfiles".[3]
[edit] Identification
For v1.10+, Szip files start with 0x53 0x5a 0x0a 0x04.[4]
The older versions of the format have no obvious signature, and are probably not easy to identify.
