A z03 file extension is related to the WinZip compression tool for Windows and Mac and used for part 4 of split multi-volume ZIP compressed file archive.

Detailed description

Software that open z03 file

Add comment

Bookmark & share this page with others:

Z03 file extension - Split Multi-volume ZIP compressed file archive (part 4)

What is z03 file? How to open z03 files?

File type specification:

Archive and compressed file type icon Archive and compressed file type

z03 file icon: z03 filetype icon

The z03 file extension is associated with WinZIP. Its one part of a multi-volume compressed ZIP archive.

zip file extension is used for the native format of WinZip archiver. In WinZIP you can split a huge archive to a few smaller files, which are called parts.

WinZip uses this split file sequence for multi-volume archives:

  • .zip or exe (SFX) for first volume
  • .z01, z02, z03 ....etc. for any additional volumes

WinZip, the original and most popular compression utility for Windows, is a  tool that quickly zips and unzips your files to conserve disk space and greatly reduce e-mail transmission time.

In order to unpack the multi-volume ZIP archive, you need to place ALL of the split parts in the same directory and start extraction of the first volume. The program will automatically use all of the parts to extract the content of the archive.

The default software associated to open z03 file:

WinZip icon

WinZip Computing, S.L. logoWinZip  Microsoft Windows software

Company or developer:
WinZip Computing, S.L.

A very popular shareware archiver for Microsoft Windows. The first release of WinZip was in 1991. WinZip supports ZIP, ARJ, ARC, LHA, BZ2 and RAR archive formats. ZIP archives can be encrypted by the 128- and 256-bit key AES encryption.

The developer of WinZip was acquired by Corel in 2006 and first version for Mac appeared in 2010.

WinZip Mac Edition icon

WinZip Computing, S.L. logoWinZip Mac Edition  Apple macOS / Mac OS X software

Company or developer:
WinZip Computing, S.L.

WinZip Mac Edition is compression utility used to create and extract ZIP archives specifically designed for Mac OS X. WinZip for Mac also supports other archive formats such as  BZ2, RAR, BZIP, WavPack etc..

Related articles:

Useful information about multi-volume archives

Help how to open:

The z03 (e.g. Avatar.z03 file) file is only one part of WinZip split compressed archive. If you want to extract this file, you must have all parts of the WinZip split compressed archive.

Open the first part of WinZip (e.g Avatar.zip file) split compressed archive in WinZip application and extract files from WinZip split compressed archive.

How to convert:

It is not possible to convert only one part of ZIP multi-volume archive. Only complete ZIP archive can be converted in to another archive or compression format.

The easiest way how to convert complete ZIP multi-volume archive is to decompress the ZIP archive with the use of WinZIP and repack the content with another compression or archive application of your choice.

List of software applications associated to the .z03 file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open z03 file, edit z03 file, convert z03 file, view z03 file, play z03 file etc. (if exist software for corresponding action in File-Extensions.org's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting z03 files.

Software that open z03 file - Split Multi-volume ZIP compressed file archive (part 4)

Programs supporting the exension z03 on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open z03 file action.

Microsoft Windows:

Main software associated with z03 file by default:
WinZip small icon WinZip
Other suggested software:
WinRAR small icon WinRAR

Apple macOS / Mac OS X:

Main software associated with z03 file by default:
WinZip Mac Edition small icon WinZip Mac Edition
Other suggested software:
The Unarchiver small icon The Unarchiver


Previous file extension
Z02 file extension

File-Extensions.org > Archive and compressed file types

Next file extension
file extension Z04


Follow us!

Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

RSS feed