Files with sid file extension can be found as backup files from Steam Client. Created when a game in the library is backed up.

There are 5 other file types using
the SID file extension!

empty icon.sid - Commodore 64 tunes and sound effects file

empty icon.sid - LizardTech MrSID image file format

sid icon.sid - Systems Management Server software inventory

empty icon.sid - ScanIt document

empty icon.sid - OpenOffice.org slot id data

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SID file extension - Steam game data backup

What is sid file? How to open sid files?

File type specification:

Backup file type icon Backup file type

sid file icon: sid filetype icon

The sid file extension is associated with Steam Client by Valve.

The sid files are backups created by Steam, which contain compressed data created with the use of Seam backup feature. The .sid files do not include any saved games, maps or other settings. Those must be backed up manually.

Together with sid files are also created SIS files and a SIM files, which provide metadata necessary to restore the backup.

The naming convention is [GAME]_disk[X]_[Y].sid, where GAME is the name of the backed up game, X is the number of disk, and Y is number of backup file on the disk.

The default software associated to open sid file:

Steam icon

Valve Corporation logoSteam  Microsoft Windows software

Company or developer:
Valve Corporation

Steam is digital distribution and multiplayer platform. It is used to distribution of computer games, game updates and also has chat and in-game voices features.

Steam for Mac icon

Valve Corporation logoSteam for Mac  Apple macOS / Mac OS X software

Company or developer:
Valve Corporation

Steam for Mac is digital distribution and multiplayer platform used for distribution of computer games, game updates and also has chat and in-game voices features. On Steam distribute many game developers, such as Electronic Arts, Activision, Bethesda Softworks, id Software etc.

Steam for Linux icon

Valve Corporation logoSteam for Linux  Linux/Unix software

Company or developer:
Valve Corporation

Steam for Linux is digital distribution and multiplayer platform used for distribution of computer games, game updates and also has chat and in-game voices features.

Help how to open:

These files are not mean to be accessed directly.

How to convert:

Conversion to other formats is not possible.

List of software applications associated to the .sid file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open sid file, edit sid file, convert sid file, view sid file, play sid file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting sid files.

Software that open sid file - Steam game data backup

Programs supporting the exension sid on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open sid file action.

Microsoft Windows:

Apple macOS / Mac OS X:

Linux/Unix:

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