>> SID file

SID file format description

Many people share .sid files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .sid file can be edited, converted or printed with. On this page, we try to provide assistance for handling .sid files.

3 filename extension(s) found in our database.

.sid - Commodore 64 Music

The SID audio files are related to Sidplay 2. SID file is a Commodore C-64 music file. SID either refers to the Sound Interface Device (the chip that produced music and SFX on the C-64), and the music produced by the chip.

Sidplay 2
Audio files
- / -
Commodore 64 Music related extensions:
MIDI Sample Dump Exchange
Max Patch
Korg Trinity Keymap
Korg Trinity Song
Amiga 8SVX Sound
Impulse Tracker Music Sample

.sid - Steam Game Backup Data

The SID data files are related to Steam. SID file is a Steam Game Backup Data. Steam is a digital distribution, digital rights management, multiplayer and communications platform developed by Valve Corporation.

Data files
- / -
Steam Game Backup Data related extensions:
Steam Game Cache File
Steam Package Data
Steam Game Backup Metadata
Steam Game Backup Info
Steam Guard Data
Steam Client GUI Resources Data

.mrsid - Multi-resolution Seamless Image Database

The MRSID graphic files are related to ExpressView Browser Plug-in. MRSID file is a Multi-resolution Seamless Image Database. MrSID is a wavelet-based image compression technology which can utilise both lossy and lossless encoding. This technology was acquired in its original form from Los Alamos National Laboratories (LANL), where it was developed under the aegis of the U.S. government for storing fingerprints for the FBI. Now is is developed and distributed by the LizardTech, Inc.

ExpressView Browser Plug-in
Graphic files
- / -
sdw, sid
Multi-resolution Seamless Image Database related extensions:
MrSID Level 8 Image
ArcInfo Band Interleaved by Line Image
Zetafax Fine Resolution Fax
Zetafax Normal Resolution Fax
JpgfDraw Drawing ASCII
JpgfDraw Drawing Binary

Naturally, other applications may also use the .sid file extension. Even harmful programs can create .sid files. Be especially cautious with .sid files coming from an unknown source!

Can't open a .sid file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .sid file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cid, eid, id, isd, sd, sdi, si, sic, sie, sif, sir, sis, siv, siw, six

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

KilnView Log Signature
.sod Configuration File
ElmerSolver Command File
Scrapbook Factory Journal Data
Cytoscape Simple Interaction Format File
Corel Ventura 4 Width Table

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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