How to Split Large File Using 7-Zip

Suppose that you want to attach a file on an e-mail message but the file is too large for sending through your mail server. Or you want to copy a file to USB drive but the file size is exceed the limit of your USB drive can hold.

To solve these problems, you can split the large file into smaller files using Zip software. So, you can attach these smaller files to e-mail messages or copy to your USB drive as you want. To get the original file back, you can open these smaller files using any Zip software and you’ll get the original file.

In this post, I’ll show how to split a large file into smaller files using 7-Zip. 7-Zip is an open source software which can compressed/uncompressed file in various formats. Other Zip softwares such as WinZip, WinRar, etc. can do this, too. The steps are similar to 7-Zip.

Step-by-step split large file using 7-Zip

  1. Download and install 7-Zip on the PC. You can download it from http://www.7-zip.org.
    Install 7-Zip
  2. In this example, I’ll split Book.pdf (~30 MB.) into smaller Zip files which the file size must not exceed 10 MB.
    A sample file
  3. Right-click on the file -> Select 7-Zip -> Add to archive.
    Add to archive
  4. On Add to Archive,
    • Name the archive file.
    • Select archive format.
    • Define file size limit you want. In this example, I’ll limit to 10MB.
    • Click OK.

    Create an archive file

  5. The program is compressing the file.
    Compress and split a file
  6. When finishes, you’ll see that a large file is split into new smaller Zip files which size are limit as you defined. In this example, I get 3 file: Book.zip.001, Book.zip.002 and Book.zip.003.
    The split files
  7. To get the original file from these Zip files, right-click one of these Zip files -> select 7-Zip -> click Open archive.
    Note: You can open these Zip files with other Zip software since they are .zip file now.
    Open archive
  8. The 7-Zip program will be opened and you’ll see the original file.
    The original file

33 Comments

  1. Sam October 29, 2008
  2. linglom October 30, 2008
  3. Giorgos March 31, 2009
  4. Giorgos March 31, 2009
  5. linglom April 7, 2009
  6. Giorgos April 9, 2009
  7. linglom April 13, 2009
  8. Giorgos April 15, 2009
  9. john April 25, 2009
  10. linglom April 26, 2009
  11. Recreate June 19, 2009
  12. Giorgos Kostopoulos June 19, 2009
  13. linglom June 25, 2009
  14. tamil July 31, 2009
  15. John August 9, 2009
  16. Passenger September 28, 2009
  17. Magnas October 17, 2009
  18. Giorgos October 17, 2009
  19. Claire December 12, 2009
  20. Eugene December 29, 2009
  21. alec May 23, 2010
  22. Robin Degen January 18, 2011
  23. Apostolis February 6, 2011
  24. Alak Chanda January 9, 2012
  25. Mike March 7, 2012
  26. Gabe March 15, 2012
  27. biren ruparelia September 10, 2012
  28. Guest January 3, 2013
  29. einsamsoul March 10, 2013
  30. Sharath Mh May 21, 2013
  31. aimkeepachieve June 17, 2015
  32. Arun Kumar Awasthi September 27, 2016
  33. Ng November 1, 2016

Leave a Reply