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Bandizip in comparison with other archivers
How to use Multi-core Compression
How to use the Finder’s right-click menu for Bandizip
How to set Bandizip as the default app to open archives
How to open ALZ and EGG files on Mac
How to use Extract Here (Smart)
How to split a large file into smaller files with Bandizip
How to view a list of files in an archive
How to modify an archive without decompression
How to set a password for an archive
How to encrypt filenames in archives
How to preview image, document, and music files in an archive
How to use Bandizip's built-in image viewer
How to move files to Recycle Bin (Trash) when deleting
How to use presets when compressing files
How to use Parallel Extraction
How to use the Password Manager
How to use the Auto Password
How to use Repair Archive
How to use the Password Recovery
Automatická detekce kódování stránky nepracuje správně
How to troubleshoot when Error 22 occurs and Mac Finder on Catalina can’t extract a ZIP archive
How to troubleshoot when a split archive can’t be decompressed
How to troubleshoot when an error occurs saying split archive files are needed
Nelze spustit rozbalený app soubor
How to troubleshoot when it takes too long to open archives
How to troubleshoot when a badge icon for files doesn’t appear in the Finder
How to troubleshoot when the Finder displays for external volumes incorrectly in the sidebar
How to troubleshoot when the right-click menu for Bandizip does not appear in a cloud synced folder
How to troubleshoot when files are automatically extracted from archives downloaded via Safari
How to use the right-click menu for Bandizip on Ventura
How to troubleshoot when a file downloaded through Chrome cant be opened.
How to troubleshoot when you archive files in an external volume on Sonoma but the archive does not appear
How to change the Unicode normalization form used for filenames
How to enable App Nap for Bandizip
How to hide the services of Bandizip in the Finder's right-click menu
How to troubleshoot when I can’t uninstall Bandizip
How to troubleshoot when I can’t install Bandizip on the App Store
How to request a refund for Bandizip that you bought from the App Store
How to cancel a subscription to Bandizip 365

How to use Parallel Extraction

Usually when an archiving program decompresses an archive, as shown below, the program extracts the first file in the archive and then other files one by one in sequence.

The feature "parallel extraction" of Bandizip, however, allows the program to make full use of a multi-core CPU and extract several files simultaneously; the processing speed of the parallel extraction is 2 to 6 times faster than that of usual extraction.


Test files

  • poty2007.zip (1.13GB)
  • music.zip (10.97GB, mp3)
  • videos.zip (9.1GB, mp4)

Test environment

  • OS: macOS BigSur 11.6
  • Model: 2019 iMac 27" (Intel i9-9900K, 8C/16T)
  • SSD: APPLE SSD SM1024L (1TB)

Test results on decompression speed


This feature works only under the following conditions:

  • Supported format: ZIP
  • Supported algorithm: store, deflate

This feature does not work under the following conditions:

  • The archive is located in an HDD or external drive, not in an SSD.
  • The archive has been corrupted.
  • The archive contains symbolic links.
  • The archive has been encrypted.
  • The archive has been split-compressed.