File extension SIS
| File type | Symbian Installation Format |
| Developer | Symbian |
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What is a SIS file?
SIS is an extension that was used in files that store program installation packages for the Symbian operating system. This system was installed on PDA devices and mobile phones of some companies.
From a technical point of view, a SIS file is an archive of files necessary for the operation of a given application. This format was later replaced by SISX. Currently, SIS files are not widely used and this format is considered obsolete.
Program(s) that can open the .SIS file
Windows
How to open SIS files
If you cannot open the SIS file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports SIS among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the SIS file can be found in the table. Now just download and install the appropriate application.
Possible problems with the SIS format files
The inability to open and operate the SIS file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the Symbian Installation Format file. Below is a list of possible problems.
- Corruption of a SIS file which is being opened
- Incorrect links to the SIS file in registry entries.
- Accidental deletion of the description of the SIS from the Windows registry
- Incomplete installation of an application that supports the SIS format
- The SIS file which is being opened is infected with an undesirable malware.
- The computer does not have enough hardware resources to cope with the opening of the SIS file.
- Drivers of equipment used by the computer to open a SIS file are out of date.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the SIS file should operate with your programs without any problem. If the problem with the SIS file has not been solved, it may be due to the fact that in this case there is also another rare problem with the SIS file. In this case, the only you can do is to ask for assistance of a professional staff.
Updated 01/23/2022
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This extension
can be converted to:
How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.SIS) you have two ways to do it. The first and the easiest one is to right-click on the selected SIS file. From the drop-down menu select "Choose default program", then click "Browse" and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the SIS file extension to the corresponding software in the Windows Registry.
Is there one way to open unknown files?
Many files contain only simple text data. It is possible that while opening unknown files (e.g. SIS) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.