Yes: GNU Lesser General Public License / Public domain
Website
7-zip.org
7z is a compressed archive file format that supports several different data compression, encryption and pre-processing algorithms. The 7z format initially appeared as implemented by the 7-Zip archiver. The 7-Zip program is publicly available under the terms of the GNU Lesser General Public License. The LZMA SDK 4.62 was placed in the public domain in December 2008. The latest stable version of 7-Zip and LZMA SDK is version 23.01.[2]
The official, informal 7z file format specification is distributed with 7-Zip's source code since 2015. The specification can be found in plain text format in the 'doc' sub-directory of the source code distribution.[3] There have been additional third-party attempts at writing more concrete documentation based on the released code.[4]
^"A Few Questions for Igor Pavlov". Dr. Dobb's Data Compression Newsletter. 30 April 2003. Retrieved 26 December 2009.
^ abHistory of 7-zip changes
^LZMA SDK, "DOC" directory, 7zFormat.txt
^".7z format specification — py7zr – 7-zip archive library". py7zr.readthedocs.io.
7z is a compressed archive file format that supports several different data compression, encryption and pre-processing algorithms. The 7z format initially...
The Clerget 7Z was a seven-cylinder rotary aircraft engine of the World War I era designed by Pierre Clerget. First appearing in 1911 it was nominally...
preprocessing filters. The exact filters used are similar to those used in 7z, as 7z's filters are available in the public domain via the LZMA SDK. Development...
restriction by renaming the file extension or by putting it into a RAR or 7z archive. This restriction has now been lifted. A GNU software package named...
or royalty-free utilities, including: Igor Pavlov 7z executable and Myspace's p7zip, POSIX port of 7z under Linux Google Brotli Bulat Ziganshin FreeArc...
latest version of the Windows version of PeerGuardian 2. This format uses 7z compression for additional size reduction. The recent adoption of this format...
International M6 AJT AMERIJET Miami Port of Spain 1974 Ameristar Jet Charter 7Z AJI AMERISTAR Dallas–Addison El Paso Willow Run 2000 Asia Pacific Airlines...
copying of data internally for optimal performance. Supported archive formats: 7z - read and write ar - read and write cab - read only cpio - read and write...
Cross-Platform + Apache + MySQL + PHP + Perl. XAMPP requires only one zip, tar, 7z, or exe file to be downloaded and run, and little or no configuration of the...
convention. The filename extension indicates the archive type used: .cb7 → 7z .cba → ACE .cbr → RAR .cbt → TAR .cbz → ZIP Comic book archive files mainly...
also available from AirportIQ 5010 FAA Location Identifiers (Order 7350.7Z): Hawaii ICAO Identifiers (Section 6H), published March 15, 2007. National...
to produce PD1. 22-hydroxy-PD1 (22-OH-PD1; i.e. 10R,17S,20-trihydroxy-4Z,7Z,11E,13E,15Z,19Z-docosahexaenoic acid) is an omega oxidation product of PD1...
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