Format
Z Compressed Data
Summary
- Name
- Z Compressed Data
- Identifiers
- PUID: fmt/1671
- Format type
- Aggregate
- Description
- Z Compressed Data are files that have been compressed by Unix's shell compression program, compress. The compress software was developed by Spencer Thomas in 1984 and uses LZW algorithm. The format has lossless data, it can be compressed and decompressed using the Unix and Linux operating systems.
- Note
- https://en.wikipedia.org/wiki/Compress https://docs.fileformat.com/compression/z/ http://fileformats.archiveteam.org/wiki/Compress_(Unix)
- File extensions
-
z - Source
- The National Archives and Records Administration / The National Archives and Records Administration
Internal signatures
Z Compressed Data
- Note
- BOF; Offset: 0; Magic Bytes: 0x1F9D90
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
1F9D90- Endianness
- None
Changelog
-
Updated in V118
- Release date
- 30 April 2024
Z Compressed Data: Name of developer corrected in description. Submitted by Igor Nechaev.
-
Updated in V108
- Release date
- 5 September 2022
Z Compressed Data: File extension z decapitilised. Submitted by Preservica.
-
Added in V105
- Release date
- 29 June 2022
Z Compressed Data: Signature researched and samples provided by The National Archives and Records Administration.
Z Compressed Data: Full entry added. Submitted by The National Archives and Records Administration.