Open .7z files on a Mac

Dec 13, 2010 - 11 Comments

open 7z file mac So you’ve come across a .7z file and you’re on a Mac, what is it and how do you use it? First off, a .7z file is an archive format that stands for 7-zip, you can think of it like any other archive file. By default, Mac OS X does not know how to handle these files, but that’s not a big deal because there’s a freely available app that will open the .7z file for you, offering simple access to extract the 7zip archive and get to the contents.

We’ll walk you through how to open .7z archive files on any version of Mac OS X, it’s quick and easy.

How to Open a .7z File in Mac OS X

Follow these steps to open and decompress .7z files:

  1. First you need to download Unarchiver (it’s free, you can also get it from the Mac App Store)
  2. Launch Unarchiver and you’ll see a file association list, tell Unarchiver to associate with .7z files (you can select others if you wish)
  3. Once Unarchiver is associated with the .7z you can then double-click any .7z file on your Mac and it will open and uncompress like any other archive format, or you can launch Unarchiver and drag and drop 7z files into the utility
  4. Opening and extracting 7z 7-zip archives in Mac OS X

  5. Let the decompression of the 7z complete before attempting to open or interact with the extracted files contents

Extract 7z file archives in Mac OS X

That’s all there is to it, now you’ll always be able to open the .7z archive files on your Mac.

Now that The UnArchiver has been installed and associated with .7z 7-zip files, you can then just launch a .7z archive and it will open within the utility, decompressing in the same location of the original 7z file and then automatically exiting the application when finished, or if the file is opened through Unarchiver directly, it will extract as well. Because 7zip archives are strongly compressed, it can take a little while to extract a large 7z file, and don’t be surprised if the 7-zip expands into something much larger than it’s original file size as an archive.

Unarchiver is a pretty popular solution to open all sorts of archive formats, it has been discussed here before as an alternate when you need to open and unrar RAR files in Mac OS X as well, and it can basically open any imaginable archive format you may come across whether it’s arriving from a mystery source, or Mac OS X, Windows, or Linux. Because of it’s flexibility and free cost, it’s a good addition to any Mac software toolkit.

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Posted by: Paul Horowitz in Mac OS X, Tips & Tricks

11 Comments

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  1. qka says:

    Stuffit Expander (also free) also works.

  2. […] Uncompress the Android VM image file (Mac users can open 7z files with Unarchiver) […]

  3. […] * Descomprime el archivo de imagen de máquina virtual de Android (los usuarios de Mac podéis abrir los archivos 7z con Unarchiver.) * Lanza VirtualBox. * Selecciona “Crear nueva máquina virtual”. * Selecciona […]

  4. Gregg Lind says:

    If you have Homebrew installed, ‘brew install p7zip’ will work as well.

  5. anonynomus says:

    Thank you, worked on a rar. file i used a lot of time to figure out how to open. !

  6. […] bin, tar, hqx, it’ll also easily tear through less common archive types including rar files, 7z, bzip2, cab, sea, exe, rpm, and many other obscure compression formats that OS X’s built-in […]

  7. Leigh says:

    Just change the .7z to .zip It works for me every time.

  8. Mikkel says:

    The unarchiver won’t open .7z files…

  9. William says:

    neither the unarchiver or stuffit expander will open my .7z files.

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