SIS files: what are they and how do I open them?
Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.
.sis file type #1: Psion software installation
An sis file extension is used for installation packages for EPOC PSION operating system.
Further details:
An EPOC software installation system file, with a sis file extension, is the method by which programs are distributed for EPOC based Psion and other organizers.
It makes a package of all the installation files, and ensures they are installed in the right places. It also lists them in the Control Panel so they can be uninstalled later.
The sis application installation packages are also used by successor of EPOC system called Symbian.
MIME types:
x-epoc/x-app
We are sorry, there is currently no specific software link to open this kind of file.
.sis file type #2: Sisma database
A sis file extension is related to the Sisma, a password management software. A sis file contains database.
Further details:
The sis file extension is associated with the Sisma, a free password management program for Microsoft Windows operating system, developed by Digital Confidence.
The sis file stores database from Sisma software.
Open file with:
Sisma Password Manager
A password management software
.sis file type #3: Steam game backup information
A sis file extension is associated with Steam Client and used for backup files.
Further details:
The sis file extension is associated with Steam Client developed by Valve, available for various platforms.
The sis files contain backup information together with a SIM file and one or several SID files.
Open file with:
Steam for Mac
OS X version of Steam game client
Steam
A digital gsame distribution platform for gamers
Steam for Linux
Game and software distribution platform for Linux
.sis file type #4: Student Information System data
A sis file extension is related to the database utilized in Pace University information system.
Further details:
The sis file extension is associated with the database utilized in Pace University information system.
The sis file contains database entry of a student. No further information could be found.
We are sorry, there is currently no specific software link to open this kind of file.
.sis file type #5: Symbian installation file
Files with sis suffix can be most typically found as installation sources for Symbian applications that were designed for Nokia Smartphones. SIS is abbreviation for Symbian Installation Source.
Further details:
File extension sis is associated with Symbian OS Installation Source.
Installer archive for devices that use the Symbian OS. Examples include Palm PDAs and Nokia, Ericsson, and Motorola phones; created using Symbian's CreateSIS program or the makesis command line tool.
Data in the .sis file is split up into two separate parts. The first part is the meta-data, describing the files that need to be installed. The second patrt of the SIS file contains all the actual file data.
SIS file format supports signatures and certificates to enable a package to signed. These signatures are verified during installation, and can also be re-verified after the package is installed on the device.
It also supports the compression of each of the files in the SIS file individually. This reduces the extra space needed to carry out installation.
MIME types used:
application/vnd.symbian.install
Open file with:
Symbian OS
An older operating system for mainly Nokia smart phones