Home : File Types : SIS File (3 File Associations)

.SIS File Extension

File Type 1Steam Game Backup Information File

4.1 (152 Votes)
CategoryBackup Files


This file is saved in a plain text format. You can open and view the contents of this file using a text editor.

What is a SIS file?

Information file used by Steam, a gaming service that allows users to download and manage Valve games; contains plain text markups, which describe properties of a game backup; used in the process of restoring game backups.

More Information

SIS files are backed up with a .SIM file and one or more .SID data files.

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Programs that open SIS files
Valve Steam
Updated 4/26/2010

File Type 2Symbian Installation File

3.9 (204 Votes)
CategoryMisc Files


This file is saved in a binary format, which requires a specific program to read its contents.

.SIS File Association 2

Installer archive for Symbian OS, an operating system used for mobile devices, such as Palm PDAs and Nokia, Ericsson, and Motorola phones; created using Symbian's "makesis" command line tool, which is bundled with the CreateSIS program; often used for S60 phone theme installations.

More Information

NOTE: To install a SIS file on a compatible phone, use the phone's communication software to transfer the file to the phone. Then open the SIS file on the phone to run the installer.

Programs that open SIS files
Updated 2/2/2012

File Type 3Sisma Database File

DeveloperDigital Conference
3.8 (40 Votes)
CategoryDatabase Files


This file is saved in a binary format, which requires a specific program to read its contents.

.SIS File Association 3

File created by Sisma, a password manager for Windows; contains account information and passwords, which are encrypted using 256-bit AES encryption; used for storing confidential data that can only be retrieved with a single master password.

More Information

Sisma can store expiration dates for passwords in SIS files so that the passwords are invalidated after a period of time. The software can also assist users by creating random auto-generated passwords that are pronounceable.

NOTE: Sisma is free for personal use, but requires a purchased license for non-personal use.

Programs that open SIS files
Updated 9/27/2010

About SIS Files

Our goal is to help you understand what a file with a *.sis suffix is and how to open it.

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