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What are SISX files and how to open them

Are you having problems opening a SISX 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 SISX files.

What is a SISX file?

A .SISX file is a Symbian Series 3 Installation file.

Files that contain the .sisx file extension are installer files for mobile devices that use the later versions of the Symbian operating system. They are referred to as Symbian Series 3 installation packages.

The SISX files define how the applications are installed on the Nokia phones that operate on the Symbian operating system. Before Symbian version OS 9.1, the installer files were saved as .sis files. Once Symbian OS 9.1 was released, the files were saved with the .sisx extension. This file format makes it easier and more convenient to distribute and install applications onto the Symbian-operated device.

How to open SISX files

Important: Different programs may use files with the SISX file extension for different purposes, so unless you are sure which format your SISX file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested three different SISX openers which you will find listed below.

Last updated: March 17, 2022

Various apps that use files with this extension

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

Nokia SuiteNokia SuiteUser submitted
Application InstallerApplication InstallerUser submitted
Nokia Ovi SuiteNokia Ovi SuiteUser 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 SISX file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.