UnZip is an extraction utility for archives compressed in.zip format (also called 'zipfiles'). Although highly compatible both with PKWARE's PKZIP and PKUNZIP utilities for MS-DOS and with Info-ZIP's own Zip program, our primary objectives have been portability and non-MSDOS functionality. Free unrar / unzip utility, extraction-only spin-off of PeaZip. Simple wizard based archive extractor tool meant to keep the decompression process as simple and streamlined as possible for novice users without prior knwoledge about working with compressed file archives. PeaUtils 1.2 (LGPLv3).
Download 7-Zip for MacOS. 7Zip is a great app that should be included on iTunes. As productivity is a concern on all Apple devices, the development of 7Zip would be a great delight for all its users. I mean, why not? It is the most powerful and secure archiving and file compression tool in its category and field. For more resources about 7Zip for other operating systems, check out our other articles on 7Zip.
So, you are one of the opulent citizens of the society or perhaps meticulous with the software and security, thus, you prefer using Mac computers. As a matter of fact, some programs and software for Windows, Linux, and for Mac are programmed differently. This goes the same with 7Zip for Mac.
By default, Mac OS X is incapable of handling these files. But this shouldn’t be much of an issue as there are lots of other archiving tools available that can open a .7z file and other file compression formats.
The 7Zip file format is considered a better file compression format because of its high security and overall stability. It 7Zip can compress any file much better than ZIP and WinRAR or WinZip. This makes 7Zip safer and a much better choice.
Contents
- 1 A Walkthrough on 7-Zip for Mac
- 1.1 Reminder
A Walkthrough on 7-Zip for Mac
Keep on reading as we are going to walk you through on the steps for opening .7z archive files regardless of what version of Mac OS you are using. Don’t worry, it is easy and quick to do even it gets an error cannot open a file as archive sometimes. Here’s how it goes.
- Download “The Unarchiver” first. The latest version is 4.2.2 and support macOS 10.7 or later. the file is 13.6 MB. You can either download it from the Mac App Store or click here for direct download.
- The app is relatively small so you should be able to get it installed for a few seconds depending on your internet speed.
- As soon as The Unarchiver app finishes installing, open it and you will see the file association list.
- Launch the Unarchiver and there you’ll find the file association list, inform the Unarchiver to associate it with .7z files.
- The moment that you’ve associated the Unarchiver with .7z you could then double-click any .7z file on your Mac computer. It will then open and uncompress like other archive format or launch Unarchiver and just drag and drop the 7z files to the utility.
This is everything that you have to know in opening any .7z archive files saved on your Mac computer. After installing the UnArchiver and associated it with .7z 7Zip files, you may now launch the .7z archive simply by double-clicking on it. Inside the UnArchiver utility, your file will open and decompress the original 7z file. It will exit the app automatically when it is finished. It is possible to directly open the Unarchiver and open the file in the Unarchiver directly where it’ll be extracted.
Reminder
Since 7Zip archives have undergone a strong compression procedure, it sometimes takes a while in order to completely extract large 7z files. Don’t be surprised as well if the 7Zip has expanded to something bigger than the original file size as the size of the archive. This is totally normal. Just be sure that you have enough disk space to accommodate all the uncompressed data.
Unarchiver is a well-known solution to all kinds of archive formats available on Mac. It’s been discussed as an alternative when you have to unRAR and open RAR files in Mac OS and it can open virtually any archive format you might come across. This can include but not limited to:
- 7z
- zip
- sit
- tgz
- tar
- gz
- rar
- bzip and;
- hqx
Due to its expansive nature and free of charge, it is a wonderful addition to your Mac software toolkit. Well, it is comparable to a Swiss army knife but for computers.
The Complete Package
Unzip Utility Mac
The Unarchiver provides support to every release of the Mac OS software that’s in use. This is regardless if you’re using the latest release, Sierra, macOS High Sierra, Mac OS X El Capitan, Mountain Lion, Mavericks, Snow Leopard, Yosemite, and so forth. It’ll work and can get the job done in opening and decompressing zip as well as other archive formats available.
The Third Most Portable Program in the World!*
UnZip is an extraction utility for archives compressed in .zip format (also called 'zipfiles'). Although highly compatible both with PKWARE's PKZIP and PKUNZIP utilities for MS-DOS and with Info-ZIP's own Zip program, our primary objectives have been portability and non-MSDOS functionality.
UnZip will list, test, or extract files from a .zip archive, commonly found on MS-DOS systems. The default behavior (with no options) is to extract into the current directory (and subdirectories below it) all files from the specified zipfile. A companion program, Zip, creates .zip archives; both programs are compatible with archives created by PKZIP and PKUNZIP for MS-DOS, but in many cases the program options or default behaviors differ. (For example, UnZip recreates the stored directory structure by default; PKUNZIP unpacks all files in the current directory by default.)
| The Unix port of UnZip 5.52 is reported to have a race-condition vulnerability, whereby a local attacker could change the permissions of the user's files during unpacking. (This has been assigned CVE ID CAN-2005-2475.) |
| All versions of UnZip through 5.50 have a number of directory-traversal vulnerabilities, and version 5.50 also has a textmode>FAQ page for details. |
Contents of This Page:
Latest Release
New features in UnZip 6.0, released 20 April 2009:
- Support PKWARE ZIP64 extensions, allowing Zip archives and Zip archive entries larger than 4 GiBytes and more than 65536 entries within a single Zip archive. This support is currently only available for Unix, OpenVMS and Win32/Win64.
- Support for bzip2 compression method.
- Support for UTF-8 encoded entry names, both through PKWARE's 'General Purpose Flags Bit 11' indicator and Info-ZIP's new 'up' unicode path extra field. (Currently, on Windows the UTF-8 handling is limited to the character subset contained in the configured non-unicode 'system code page'.)
- Added 'wrong implementation used' warning to error messages of the MSDOS port when used under Win32, in an attempt to reduce false bug reports.
- Fixed 'Time of Creation/Time of Use' vulnerability when setting attributes of extracted files, for Unix and Unix-like ports.
- Fixed memory leak when processing invalid deflated data.
- Fixed long-standing bug in unshrink (partial_clear), added boundary checks against invalid compressed data.
- On Unix, keep inherited SGID attribute bit for extracted directories unless restoration of owner/group id or SUID/SGID/Tacky attributes was requested.
- On Unix, allow extracted filenames to contain embedded control characters when explicitly requested by specifying the new command line option '-^'.
- On Unix, support restoration of symbolic link attributes.
- On Unix, support restoration of 32-bit UID/GID data using the new 'ux' IZUNIX3 extra field introduced with Zip 3.0.
- Support for ODS5 extended filename syntax on new OpenVMS systems.
- Support symbolic links zipped up on VMS.
- On VMS (only 8.x or better), support symbolic link creation.
- On VMS, support option to create converted text files in Stream_LF format.
- New -D option to suppress restoration of timestamps for extracted directory entries (on those ports that support setting of directory timestamps). By specifying '-DD', this new option also allows to suppress timestamp restoration for ALL extracted files on all UnZip ports which support restoration of timestamps. On VMS, the default behaviour is now to skip restoration of directory timestamps; here, '--D' restores ALL timestamps, '-D' restores none.
- On OS/2, Win32, and Unix, the (previously optional) feature UNIXBACKUP to allow saving backup copies of overwritten files on extraction is now enabled by default.
For the UnZip 6.0 release, we want to give special credit to Myles Bennet, who started the job of supporting ZIP64 extensions and Large-File (> 2GiB) and provided a first (alpha-state) port.
Future Plans
The next major release will be version 6.1.
It is questionable whether there will ever be a subsequent major release, but on the off-chance that there is, it will probably be version 7.0, perhaps with a much-improved and unified DLL interface and possibly better file system support for the MVS and VM/CMS ports, assuming that doesn't happen sooner. And then perhaps version 8.0 will be released, with full filter support (that is, able to read and extract a zipfile from standard input like fUnZip does now), but now we're really dreaming. While we're at it, though, a tcl/tk or Python/PIL graphical interface might be nice--but see the related-links section for a pointer to TkZip, which already exists (and has for a long time).
Downloads
Ready-to-run binary versions of UnZip are available for numerous platforms and operating systems, but for most systems, only older binaries are available. The three primary CTAN sites (and their many mirrors) contain a snapshot of these binaries, current as of roughly 2004 (i.e., UnZip 5.51 and Zip 2.3 timeframe):
- tug.ctan.org (US) [FROZEN]
- ftp.tex.ac.uk (UK) [FROZEN]
- ftp.dante.de (Germany) [FROZEN]
Here's a quick guide to the directory structure of the old ftp site:
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As of 2009, the latest sources and binaries for Zip, UnZip, WiZ and MacZip (including encryption code) are available at ftp.info-zip.org and Info-ZIP's SourceForge site.
Other Stuff
Technical information on zipfiles and other assorted Info-ZIP documentation is available from:
- www.info-zip.org (Kentucky, US) or local mirror
Technical information and documentation for deflate/inflate and zlib are available from:
- zlib home page
Pkzip Unzip
Further information on where to (possibly) find Info-ZIP stuff is available in:
- the Info-ZIP 'WHERE' file (ASCII text)
Information about commercial use, modification and redistribution of Zip, UnZip, WiZ and MacZip is available in:
- the Info-ZIP license
It's basically BSD-like, but note that there may still be a few remaining files in some of the packages that are covered by different licenses.
Return to the Info-ZIP Home Page.
Last updated 10 September 2009. Web page occasionally maintained by Hunter Goatley. Please direct Info-ZIP queries (availability, ports, bugs, etc.) to Zip-BugUnzip Utility For Mac
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* 'Hello, world' would be the first, of course. C-Kermit is probably second. (The Linux kernel may very well be third...) | Copyright © 1995-2008 Greg Roelofs. UnZip is maintained by Christian Spieler. |