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

Details of extension .w40

Below, you can find answers to the following questions:

  • What is the .w40 file?
  • Which program can create the .w40 file?
  • Where can you find a description of the .w40 format?
  • What can convert .w40 files to a different format?
  • Which MIME-type is associated with the .w40 extension?

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

Windows 95 System File Copy .w40 file icon

Windows 95 System File Copy

W40 file is a Windows 95 System File Copy. Windows 95 Setup creates W40 files based on the existing config.sys, autoexec.bat file.
Category: Other files
Application: -
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:

Other types of files may also use the .w40 file extension. If you have helpful information about .w40 extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Yamaha SY Series Sample

Can't open a .w40 file?

If you want to open a .w40 file on your computer, you just need to have the appropriate program installed. If the .w40 association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.w40

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, Windows 7, Windows 8, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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