Macos Open 7z


Don't forget to bookmark Open 7z File using Ctrl + D (PC) or Command + D (macos). If you are using mobile phone, you could also use menu drawer from browser. Whether it's Windows, Mac, iOs or Android, you will be able to download the images using download button.

I use 7-Zip for Windows, and I am astounded at the quality of the compression (sometimes down to 55% of the original size). Is there such an alternative for Mac?
At the moment, I have a few DMGs, which would fit onto a DVD-9 but not a DVD-5. I can't get any good DVD-9s without ordering them online, and I don't want to go through that hassle for a spindle of 10 or 20. In addition, 7-zip would be an excellent format for archiving old data. Is there a mac version?

iMac 2.66 GHz standard configuration (April 2008), Mac OS X (10.6.2), iPod Touch 1st Generation OS 3.1.2, D-link DIR-625 router, iLife 09, iWork 09

  • What is Ez7z for Mac. Ez7z is an easy-to-use archiver that allows users to perform a number of tasks: Expand 7z, bzip2, gz, rar, tar, and zip files. Shrink files into 7z, bzip2, gz, tar, and zip formats. View the contents of an archive without opening it. Delete files from an archive without opening it. Create, verify, and repair par2 files.
  • Open and convert content from a wide selection of industry-standard compression file types using WinZip® Mac 9. It’s easy to instantly convert a LZH, LHA, RAR, 7Z, TAR, Z, GZ, TAZ, TGZ, BZ, XZ or Z file into a Zip or ZipX file.
  • Download The Unarchiver for macOS 10.9 or later and enjoy it on your Mac. ‎The Unarchiver is a small and easy to use program that can unarchive many different kinds of archive files. It will open common formats such as Zip, RAR (including v5), 7-zip, Tar, Gzip and Bzip2.

Posted on Nov 26, 2009 4:44 AM

A 7z file extension is used for compressed archives created with the 7-Zip archive utility. 7-Zip archives are similar to RAR files, but are using different compression method. Most good archives are able to extract 7zip formats without trouble.

Software that open 7z file

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7Z file extension- 7-ZIP compressed 7z archive

What is 7z file? How to open 7z files?

File type specification:

7z file icon:


The 7z file extension is used for native file format of 7-ZIP archiver.
7z is the new backup and archive file format, providing high compression ratio.

7-Zip supports encryption with the AES-256 algorithm. This algorithm uses a cipher key with a length of 256 bits. To create that key, 7-Zip runs a derivation function based on a SHA-256 hash algorithm. A key derivation function produces a derived key from the text password entered by the user. To increase the cost of an exhaustive search to crack a password, 7-Zip uses a large number of iterations when it produces a cipher key from a password.

7z file format was developed as as part of the 7-Zip compression utility distributed under the GNU LGPL.
MIME type used for 7z files: application/x-lzma

The main features of 7z file format:

  • Open architecture
  • High compression ratio
  • Strong AES-256 encryption
  • Ability of using any compression, conversion or encryption method
  • Support for very large files with sizes up to 16000000000 GB
  • Unicode file name support
  • Solid compression ratio
  • Archive headers compression
Macos Open 7z

7z file format has an open architecture, so it can support any new compression methods. LZMA is the default and general compression method of 7z file format.

The main features of LZMA are:

  • Variable dictionary size (up to 4 GB)
  • Compression speed: about 1 MB/s on 2 GHz CPU
  • Decompression speed: about 10-20 MB/s on 2 GHz CPU
  • Small memory requirement for decompression (depend from dictionary size)
  • Small code size for decompression: about 5 KB
  • Supports multi-threading and P4's hyper-threading

The LZMA compression algorithm is very suitable for embedded applications. LZMA is released under the terms of the GNU LGPL.

Updated: January 20, 2021

The default software associated to open 7z file:

Company or developer:
Igor Pavlov

A free file archiver developed by Igor Pavlov featuring higher compression ratios with LZMA and LZMA2 compression.

It is mainly available for Windows platform (for Mac and Linux are available command line tools) and is the primary program to handle 7z archives. However, also supports various compression file formats.

Supported formats:

Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM


Related articles:

Help how to open:

The native application, that can open and extract 7z compressed file is 7-Zip.
7zip compression format is supported by third party archive applications such as WinRAR, PowerArchiver, PeaZip, ZipZag and etc... This applications can open and extract 7z compressed archives.

How to convert:

The easiest way how to convert 7z archive is to decompress the 7z archive with the use of 7-ZIP and repack the content with another compression or archive application of your choice.
WinRAR has integrated conversion utility, that can convert 7z compressed archive files (and other compression formats) into RAR compressed archives.

Find conversions from 7z file:

Find converter to 7z file type:

File identification strings:

Open 7z online

HEX code: 37 7A BC AF 27 1C
ASCII code: 7z '

List of software applications associated to the .7z file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open 7z file, edit 7z file, convert 7z file, view 7z file, play 7z file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting 7z files.

Software that open 7z file - 7-ZIP compressed 7z archive

Programs supporting the exension 7z on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open 7z file action.

Macos Open 7z Iso

Microsoft Windows:

Main software associated with 7z file by default:
Other suggested software:
StuffIt Deluxe

Apple macOS / Mac OS X:


Google Android:

Open 7z On Mac

Windows Phone / Windows 10 Mobile: