PackIt
From Just Solve the File Format Problem
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|wikidata={{wikidata|Q7122860}} | |wikidata={{wikidata|Q7122860}} | ||
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| + | '''PackIt''' was for a time in the mid-1980s the leading archiver for the Macintosh platform, until it was eclipsed by [[StuffIt]]. It was developed by Harry Chesley. | ||
| − | + | Originally an archiver which merely appended multiple files into one file with no compression, it later added compression in the form of [[Huffman coding]]. Encryption was also supported, but not much used. | |
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| − | Originally an archiver which merely appended multiple files into one file with no compression, it later added compression | + | |
As with most Mac-specific archiving systems, PackIt stored the [[Resource Fork]] of the files along with the regular file data (data fork). | As with most Mac-specific archiving systems, PackIt stored the [[Resource Fork]] of the files along with the regular file data (data fork). | ||
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| + | == Disambiguation == | ||
| + | Note that there are a lot of other things named "PackIt", or something similar. | ||
| + | |||
| + | == Identification == | ||
| + | Files in the known version of the format start with ASCII "{{magic|PMa}}", and end with "{{magic|PEnd}}". | ||
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| + | The fourth byte of the file is either ASCII "<code>g</code>", or in the range "<code>1</code>" through "<code>7</code>".<ref>Based on the pitpit.c file in the PackIt III source code.</ref> | ||
== Specifications == | == Specifications == | ||
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== Sample files == | == Sample files == | ||
* https://telparia.com/fileFormatSamples/archive/packIt/ | * https://telparia.com/fileFormatSamples/archive/packIt/ | ||
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| + | == Links == | ||
| + | * [[Wikipedia: PackIt]] | ||
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| + | == References == | ||
| + | <references/> | ||
[[Category:Macintosh]] | [[Category:Macintosh]] | ||
Revision as of 16:36, 21 November 2023
PackIt was for a time in the mid-1980s the leading archiver for the Macintosh platform, until it was eclipsed by StuffIt. It was developed by Harry Chesley.
Originally an archiver which merely appended multiple files into one file with no compression, it later added compression in the form of Huffman coding. Encryption was also supported, but not much used.
As with most Mac-specific archiving systems, PackIt stored the Resource Fork of the files along with the regular file data (data fork).
Contents |
Disambiguation
Note that there are a lot of other things named "PackIt", or something similar.
Identification
Files in the known version of the format start with ASCII "PMa", and end with "PEnd".
The fourth byte of the file is either ASCII "g", or in the range "1" through "7".[1]
Specifications
Software
- PackIt page with source code
- macutil → macunpack
- The Unarchiver
Sample files
Links
References
- ↑ Based on the pitpit.c file in the PackIt III source code.
