File type: Symbian Installation Files
What is an SIS file?
An SIS file is a type of file about Symbian technology and Symbian applications. Although we now have advanced technology today, SIS remains the most common installation archive of Symbian Operating Systems.

How to open SIS files
To open this file format, you will need software that allows you to view it. Without suitable software on your device, you may see any of the following alerts.
- How do you want to open this file?
- Windows cannot file
- An error alerts
To open this file, you will need to download a suitable program. Once you have downloaded and installed a suitable program, do the following.
- Right-click the file
- Click the “Open with” button and pick the application you have downloaded for the purpose
Programs for opening or converting SIS
Some suitable programs include
#1 Symbian by Symbian
A Symbian by Symbian program is the main application for SIS formats. If you work with SIS files regularly, you can download and install this program on your device for use at any time.
#2 Nokia Program
Nokia uses a Symbian Operating system, so opening an SIS with a Nokia device shouldn’t be a problem.
#3 Sisma by Digital Confidence
Sis is a database file for Sisma and this manager tool encrypts and stores data and passwords using the “256-bit AES Cipher technology. Sisma’ association is Archive classified.
#4 SiSoftware Sandra
SiSoftware Sandra by SiSoftware is a reporting and diagnostic assistant that has 32-bit and 64-bit Windows analyzers for benchmarking, listing, and testing modules. With this program, not only can you open your SIS, but you can also compare your device with other similar devices and technology.
A Symbian by Symbian program appears to be the best program for opening SIS files. This is simply because it is for such a purpose. However, any of the other programs in this article work just as well.
If you work with SIS regularly, endeavor to install any of them on your device, and you are good to go.