.SID File Extension

.SID File Extension

File Type 1

Steam Game Data Backup File

Developer Valve
Popularity
3.8  |  48 Votes
Category Game Files
Format Binary

What is a SID file?

Backup file created by Steam, an application used to download and manage Valve video games on desktop computers; contains compressed game data created by the Steam backup feature (steambackup.exe program); used to backup games to DVDs or other external media.

More Information

SID files are created with a .SIS file and a .SIM file, which provide metadata necessary to restore backup game data. SID files use the naming convention {game}_disk{X}_{Y}.sid, where "game" is the name of the backup game, "X" is the disk number, and "Y" is the backup file number on the disk.

NOTE: Steam backups do not include saved games, custom multiplayer maps, or configuration files. You must backup and restore those files manually.

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Programs that open or reference SID files

Windows
Mac
Updated November 11, 2011
File Type 2

MrSID Image

Developer Extensis
Popularity
3.4  |  19 Votes
Category Raster Image Files
Format Binary

What is a SID file?

Image created using Multi-resolution Seamless Image Database (MrSID) compression, which was developed by Extensis for compressing large images; commonly used to partition and store large Geographic Information Systems (GIS) images.

More Information

NOTE: Extensis was formerly known as LizardTech.

Programs that open or reference SID files

Windows
Free Trial
Free Trial
A Web browser with LizardTech ExpressView (MrSID) Browser Plug-in
Mac
A Web browser with LizardTech ExpressView (MrSID) Browser Plug-in
Updated November 12, 2018
File Type 3

SID Audio File

Developer N/A
Popularity
3.2  |  11 Votes
Category Audio Files
Format N/A

What is a SID file?

Audio file originally used by Commodore computer systems, but now more often used for playing the sounds on Commodore emulators and SID software players; often used for video game background music and can use mono or stereo audio formats; created for the MOS Technology 6502 processor, which can be emulated by newer desktop software to play the audio.

More Information

SID files may use the PSID format or the newer RSID (Real SID) format. While the PSID format is more compatible with general Commodore emulation software, the RSID format requires more complete emulation of the C64 hardware.

Programs that open or reference SID files

Windows
Mac
Linux
Updated May 5, 2017
File Type 4

ScanIt Document

Developer AmsterCHEM
Popularity
2.0  |  2 Votes
Category Raster Image Files
Format XML

What is a SID file?

Document created and used by ScanIt, an application used to extract data from graphs; contains the graph image and its metadata; includes axes definitions, document windows, and other document specific options.

More Information

The SID file allows you to save your progress and continue it at a later time. The file can be saved to a variety of image formats, such as .JPEG, .PNG, .TIF, and .BMP.

Programs that open SID files

Windows
Updated September 29, 2015

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