Split Zip files and how to create them

  1. Split Zip files
  2. Configuring the segment size
  3. How to create a split Zip file
  4. Create a split Zip file from the context menu

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.

Configuring the segment size

Tools tab showing Split Zip file size options

Before you start, you should open WinZip to the Tools 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) in the window that opens
  3. Or click in the Custom Size (MB) text box and type a size (in megabytes) with two decimal places

Click the spinner arrow to set a custom size

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 Split 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.

Depending on the number of segments, the result is a sequence of files named filename.z01, filename.z02, and so on, ending with 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.

Create a split Zip file from the context menu

Starting with WinZip 21.5, you can create a split Zip file directly from a File Explorer window without needing to create a single, large Zip file first. You will still want to follow the instructions in Configuring the segment size before you create a split Zip file, to insure the size of your segments will be appropriate. Once that is done, you would:

  1. Locate and highlight the files and/or folders you want to zip in File Explorer
  2. Right click in the highlighted area and choose Create a Split Zip File from the WinZip submenu of the context menu
    Click Create a Split Zip File
  3. In the Create a Split Zip File dialog that opens, change the file name and the destination if you wish, and choose other options, then click Create
    Choose options for your split Zip file

That's it! WinZip will create your split Zip file with the name you chose and in the location you selected.

If you have any questions about this information, please submit a Technical Support ticket.

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

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