If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .21w

On this page, we're going to take a closer look at the .21w file extension, which is related to Snood Preferences Data. We'll explain what exactly a .21w fileformat is and how you can use it. If you're interested in learning more details about this type of file, we'll show you where to find them. And if you ever need to convert .21w files into different formats, we'll give you some tips on how to do that too. Let's see the file format associated with this file extension!


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21w file - Snood Preferences Data

Snood Preferences Data

The 21W file is a Snood Preferences Data. Snood is a puzzle game developed by Dave Dobson.
Category: Game Data files
Application: Snood
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
.ssv Snood Saved Game Data

The .21w file extension might not only belong to a single type of file, there could be various kinds that use it. Keep in mind that files with the .21w extension may contain various content types. If you have helpful information about this extension, write to us!

Having trouble opening a .21w file?

If you want to open a .21w file on your computer, you just need to have the appropriate program installed. Incorrect settings for the .21w association can trigger this error.

Windows can't open this file:

File: example.21w

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 from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android