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Split Zip files and how to create them

Article ID: 86
Last updated: 13 Jul, 2016
Views: 240472

  1. Split Zip files
  2. Configuring the segment size
  3. How to create a split Zip file

Split Zip files

You can use WinZip to split Zip files (.zip or .zipx) into smaller pieces. A split Zip file will have multiple segments that are all of a specified size. The following lists gives several reasons why you might want to create a split Zip file.

  • An alternative to spanning Zip files on CDs or DVDs:
    • Use this alternative if you want to make multiple copies of your set of discs
    • Use this alternative when you want to make the disc contents as a separate step from making the discs themselves
  • To assist with large downloads: Some people may have difficulty downloading very large Zip files from web sites, FTP sites, etc. You can use the split Zip feature to break large files into smaller pieces that can be downloaded separately.
  • Overcome email size limits: Some email systems limit the size of attachments; if you want to email a large Zip file that exceeds your limit, you can split it into smaller parts and email them separately. The WinZip default option for overcoming email size limits is to use one of the numerous supported Cloud services.
    Settings tab showing Split Zip file size options

Configuring the segment size

Before you start, you should open WinZip to the Settings tab to configure your Split size. You can choose from common split sizes on the drop down menu or you can specify your own size. To specify your own size:

  1. Choose Custom size in the Split drop down menu
  2. Click the spinner arrow to adjust the Custom Size (MB) setting
  3. Or click in the Custom Size (MB) text box and type a size (in megabytes) with one decimal place
    Click the spinner arrow to set a custom size

XP users should choose Other size in the drop down menu in the Split dialog.

How to create a split Zip file

To create a split Zip file, you would need to:

  1. Create a new Zip file or open an existing one in WinZip
  2. Click the Tools tab and click Multi-Part Zip File
  3. Type the name for your split Zip file and choose a target folder
    Note: The name must be different from the name of the open Zip file.
  4. Click OK to create the Split Zip file.

To begin for XP users, click the Actions menu, choose Split, and specify the size to be used for the individual parts.

Depending on the number of segments, the result is a sequence of files named filename.z01, filename.z02, and so on, ending with filename.zip. The naming convention for split Zipx files is filename.zx01, and so on, ending with filename.zipx. We recommend that the recipient of these files use the current version of WinZip to open and extract the contents of the split file, although WinZip 9.0 or later can be used if newer, advanced compression methods are not involved.

If you have any questions about this information, please email Technical Support.

Related Articles:
Zip File Spanning
Quick examples of how to zip files with WinZip
Settings Tab - WinZip Ribbon

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