4 file types use the .sis file extension.

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

Category: Backup Files

Symbian Installation File

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.

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 or reference SIS files

Updated: February 2, 2012

Sisma Database File

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.

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 or reference SIS files

Updated: September 27, 2010

arivis ImageCore File

A SIS file may also be an image data file saved in the ImageCore format, which is commonly used by arivis Vision4D imaging science software. It contains image data, which may include spatial plane, channel, and frame dimension data. SIS files support 8 bit, 16 bit, 32 bit, and 32 bit (float) data depths and also store metadata and color settings.

arivis Vision4D is a 2D/3D/4D imaging application that allows you to annotate, visualize, and analyze biological images on the microscopic level. You can view 2D and 3D images, as well as 4D images, which is a 3D image that includes time data. The ImageCore format was developed in order to store the large amount of image data necessary for arivis software to render the images.

To open a SIS file in Vision4D, simply click File → Open... , and select the SIS file you want to open. You may also import an image saved in another format to Vision4D by selecting File → Import . The image will automatically be converted to the ImageCore format.

NOTE: The ImageCore format was introduced in 1997.

Programs that open SIS files

Updated: April 26, 2018