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How to Uncompress 7Z Files

7z is a compressed file archive created using the open source, high compression file archiver 7-Zip. These files are created to efficiently store and transmit large amounts of data. 7z files have many features, including AES-256 encryption, support for Unicode file names, and file sizes up to 16 exabytes (16,000,000,000 GB). While many programs can extract 7z files, including Corel WinZip, ZipZag, WinRAR, PeaZip, ZipGenius and ConeXware PowerArchiver, the 7-Zip utility is easy to use and free.

Things You'll Need

  • 7-Zip
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Instructions

    • 1

      Download the 7-Zip utility from 7-zip.org.

    • 2

      Double click the downloaded file, choose C:\Program Files\7-Zip\ as the destination folder. Click Install.

    • 3

      Click "Finish" to complete the installation.

    • 4

      Right-click your 7z file. Choose "Open With" and "Choose Default Program."

    • 5

      Choose "Browse" to open your "Program Files" folder.

    • 6

      Locate the 7-Zip folder. Double click it. Then double click 7zFM.exe. This will open the file in 7-Zip and associate all of your other 7z files with the 7-Zip program. From this point forward double clicking any 7z file will open the 7-Zip program window.

    • 7

      Click "Extract" at the top of the 7-Zip window. Choose a location for your files and select "OK."

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