What's the SIS File?

Reporter:   |   Refreshed: November 26, 2018

Microsoft Silver

SIS File Summary

File Extension SIS has three unique file types (with the primary being the Steam Game Backup Information File format) and is mostly associated with Steam (Valve) and five other software programs. The SIS File Extension are listed predominantly as Backup Files, while in other circumstances they can be Uncommon Files or Database Files.

File Extension SIS is supported by Windows, Mac, and Linux operating systems. These types of files can be found on both desktop and mobile devices. SIS files have a "Low" Popularity Rating; this means that they are not present on most devices.

Although there is a lot more to know about SIS files, those are the most important details of these types of files. If you are having trouble opening these files, or would like more detailed information, please see our comprehensive information below.

Low
Prevalence
213
Position

/ 11690

Active

Mode

26

November

2018

Refreshed

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Varieties of SIS Files

  3 known file types use this extension

Primary SIS File Association

.SIS
File Format:.sis
Category:Steam Game Backup Information File

Steam Game Backup Information File contains a description of the properties of a game backup. It can be used in restoring the game backups.

Organization: Valve
Kind:Backup Files
Registry Key: HKEY_CLASSES_ROOT\.sis

Software Programs That Open The Steam Game Backup Information File:


Steam by Valve

Windows
Mac
Linux

Additional SIS Files

.SIS
File Format:.sis
Category:Symbian Installation File

Symbian Installation File is an installer archive for Symbian OS. It is created by Symbian's "makesis" command line tool, which accompanies the CreateSIS program.

Organization: Symbian Ltd.
Kind:Uncommon Files

Software Programs That Open Symbian Installation File Files:


Easy SIS Creator by S.V. Softwares

Compatible with:

Windows

Nokia PC Suite by Nokia

Compatible with:

Windows
Mac

Nokia Suite by Nokia

Compatible with:

Windows

Palm OS Emulator by Palm

Compatible with:

Windows
.SIS
File Format:.sis
Category:Sisma Database File

Sisma Database File contains account information and passwords. It is used to store confidential data retrieved with a single master password.

Organization: Digital Confidence
Kind:Database Files

Software Programs That Open Sisma Database File Files:


Digital Conference Sisma by Digital Confidence

Compatible with:

Windows

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SIS Demand


Browser Hierarchy

Chrome (58.80%)
Firefox (11.05%)
Internet Explorer (9.04%)
Edge (8.46%)
Safari (3.87%)


SIS File Complications


Issues Opening SIS Files

Steam is Not Installed

When trying to open your SIS file, you get the error "Can't Open SIS File Type". When this happens, it is commonly due to Steam missing in %%os%%. Because your operating system doesn't know what to do with this file, you won't be able to open it by double-clicking.


Tip: Another SIS-related program can be selected to open the file by clicking "Show Apps" and finding the application.


Wrong Version of Steam is Installed

In other instances, your Steam Game Backup Information File file version may not be supported by your version of Steam. If you've got the wrong version of Steam installed, you'll need to install the correct version. The primary cause of this problem is that your Steam Game Backup Information File file was created by a different (newer) version of Steam than what's installed.


Tip: Investigate your SIS file by right-clicking and selecting "Properties" to find clues on what version you need.


Ultimately, most of the difficulties opening SIS files are due to having the wrong version of Steam installed.


Other SIS File Issues

In the majority of cases, installing the right version of Steam will resolve your issue. If you are still having problems opening SIS files, there may be other issues that are preventing you from opening these files. These issues include:

  • File references in the Windows Registry for SIS are wrong
  • Deletion of the SIS file description from the Registry by mistake
  • Incomplete or bad installation of a software application associated with the SIS format
  • SIS file corruption
  • Your SIS has adversely impacted by malware
  • SIS-related hardware has device drivers that obsolete
  • Insufficient system resources to successfully open Steam Game Backup Information File files

Quiz: Which file extension is not a type of document?









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