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ISZ File

What are ISZ files and how to open them

Are you having problems opening an ISZ file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your ISZ files.

What is an ISZ file?

An .ISZ file is an ISO Zipped file.

Files that contain the .isz file extension normally store compressed disk image files. ISZ files are very similar in nature to ISO files, but the contents of an ISZ file are compressed in order to make the file smaller and save disk space.

The ISZ file format also supports password protection and encryption. Huge ISZ files may be split into separate volumes. The smaller file sizes of the split archive make it easier for users to distribute the files over the Internet. The ISZ file format was created by EZB Systems, the same software company that created the UltraISO software application.

How to open ISZ files

We have identified one ISZ opener that is compatible with this specific type of ISZ file.

Programs that open ISO Zipped files


Last updated: December 21, 2023

Various apps that use files with this extension

These apps are known to open certain types of ISZ files. Remember, different programs may use ISZ files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Alcohol 52%Alcohol 52%Verified
DAEMON ToolsDAEMON ToolsVerified
WinMountWinMountUser submitted
UltraISOUltraISOUser submitted
WinCDEmuWinCDEmuUser submitted
VideoPad Video-EditorVideoPad Video-EditorUser submitted
Express BurnExpress BurnUser submitted
Prism Video ConverterPrism Video ConverterUser submitted
MixPadMixPadUser submitted
Doxillion Document ConverterDoxillion Document ConverterUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about ISZ file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.