File Extension Library

.SID File Extension

  • Developer by: Valve
  • Category: Game Files
  • Format: Binary

What is an .SID file?

.SID file extension is created by Valve. .SID has been classified as Game Files. The format of .SID file is Binary.

.SID is Steam Game Data Backup 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.

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.

List of all softwares that can open the Steam Game Data Backup File
Valve Steam
Valve Steam
File Type 2 MrSID Image
Developer by: Extensis Category: Raster Image Files Format: Binary

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.

NOTE: Extensis was formerly known as LizardTech.

List of all softwares that can open the MrSID Image
Extensis GeoExpress
Extensis GeoViewer
Extensis Express Server
Extensis SquishPic
ESRI ArcGIS for Desktop
ACD Systems Canvas X 2019
Extensis SquishPic
Extensis Express Server
Extensis SquishPic
File Type 3 SID Audio File
Category: Audio Files

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.

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.

List of all softwares that can open the SID Audio File
ACID 64 Player
File Type 4 ScanIt Document
Developer by: AmsterCHEM Category: Raster Image Files Format: XML

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.

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.

List of all softwares that can open the ScanIt Document
AmsterCHEM ScanIt

How to Open .SID file on different platforms

Open .SID File on Windows

  • Right-click a .SID
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .SID file and Select check box "Always use this app to open .SID files" Press "Ok"

Open .SID File on Mac

  • Right-click (or Ctrl + Left-click) the .SID file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .SID File on Linux

Right click on the .SID file, choose "Open with" and select a program from the list above

Open .SID File on iPhone

Select a file. If you don't see an application to open the .SID file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .SID File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .SID files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .SID files

  1. You need to update the application that you normally use to open .SID files. Only the latest version of the software supports the current .SID file format
  2. You need to check the .SID file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)