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License & Registration
Bandizip License Policy
How to register Bandizip
Bandizip Edition Comparison
Bandizip MSE (Microsoft Store Edition)
How to receive a receipt
Refund Policy
How to unregister Bandizip
Exclusive features of Bandizip Paid Edition
How to use the Password Manager
How to use Repair Archive
How to use the Password Recovery
How to preview images in an archive with Bandizip
How to use Antimalware Scan on Archive
Features & Technical Terms
How to zip files with Bandizip
How to unzip files with Bandizip
How to use Extract Here (Smart)
How to split a large file into smaller files with Bandizip
How to use Unicode filenames in ZIP format
ZIPX archive format
7z archive format
ZPAQ archive format
Solid Compression
How to open RAR files
How to open ALZ and EGG files
How to use Fast Drag and Drop
How to use Multi-core Compression
How to use High-speed Archiving
How to modify an archive without decompression
How to open a file in an archive without extraction
How to edit a file and save it in an archive directly
How to set a password for an archive
How to encrypt filenames in archives
How to move files to Recycle Bin (Trash) when deleting
How to compress a file even when the file is used by another process
How to use Parallel Extraction
Expand folder tree automatically
How to prevent data corruption by safe backup
How to test an archive
How to copy Zone.Identifier information for malware protection
How to change the theme color for Bandizip
How to export and import Bandizip settings
How to uninstall Bandizip
Update types
Command Line Parameters
Bandizip Setup Command Line Parameters
Bandizip on Windows 10 on ARM
How to troubleshoot when I can’t register Bandizip
How to troubleshoot when I can’t access the email account that I used to buy Bandizip
Automatická detekce kódování stránky nepracuje správně
How to troubleshoot when Bandizip opens archive files automatically when I download them on the browser
How to troubleshoot when an icon for archives doesn’t appear properly in the File Explorer
How to troubleshoot when a right-click menu (context menu) for Bandizip doesn’t appear
How to troubleshoot when a right-click menu (context menu) for Bandizip isn’t displayed properly
How to troubleshoot when the compression or decompression speed is too slow
How to troubleshoot when Error 22 occurs and Mac Finder on Catalina can’t extract a ZIP archive
How to troubleshoot when Mac Finder can’t extract an encrypted ZIP file
How to use a non-alphabetic language character in a password
How to test multiple archives
How to troubleshoot “The parameter is incorrect.”
How to troubleshoot when Bandizip conflicts with Sticky Notes
How to troubleshoot when I can’t open an archive in a network mapped drive
How to troubleshoot when a split archive can’t be decompressed
How to troubleshoot when bdzsfx.x86.sfx is diagnosed as malware
How to run Bandizip on Linux using Wine

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

  • (1.13GB)
  • (5.18GB)
  • (6.85GB)

Test environment

  • OS: Windows 10
  • CPU: Intel 9900K (8 Cores/16 Threads)
  • SSD: Samsung 970 Pro 1T

Test results on decompression speed (sec)

7-Zip 21.03 WinRAR 6.10 1 6 6 6 6 42 36 32 8 18 28 37



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.