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

Details of extension .21w

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .21w file?
  • Which program can create the .21w file?
  • Where can you find a description of the .21w format?
  • What can convert .21w files to a different format?
  • Which MIME-type is associated with the .21w extension?
Snood Preferences Data .21w file icon

Snood Preferences Data

The 21W file is a Snood Preferences Data. Snood is a puzzle game developed by Dave Dobson.
Detailed description not available
Category: Game Data files
Application: Snood
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Snood Saved Game Data

Other types of files may also use the .21w file extension. If you have helpful information about .21w extension, write to us!

Can't open a .21w file?

If you want to open a .21w file on your computer, you just need to have the appropriate program installed. If the .21w association isn't set correctly, you may receive the following error message:

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 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android