Having problems opening a SISX file?

We have programs that can open or convert your SISX files.

Opening SISX files

Did your computer fail to open a SISX file? We explain what SISX files are and recommend software that we know can open or convert your SISX files.

What is a SISX 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 the way the applications are installed on the Nokia phones that operate on the Symbain operating system. Prior to 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.

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

About File Extension SISX

File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.

If you have additional information about the SISX file format or software that uses files with the SISX suffix, please do get in touch - we would love hearing from you.