>> 4SW file

4SW file format description

Many people share .4sw files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .4sw file can be edited, converted or printed with. On this page, we try to provide assistance for handling .4sw files.

1 filename extension(s) found in our database.

.4sw - 4DOS Swapfile

The 4SW data files are related to 4DOS. 4SW file is a 4DOS Swapfile. 4DOS is a command line interpreter, designed to replace the default command interpreter COMMAND.COM in DOS and Windows 95/98/Me.

Data files
- / -
4DOS Swapfile related extensions:
4DOS Batch File

Naturally, other applications may also use the .4sw file extension. Even harmful programs can create .4sw files. Be especially cautious with .4sw files coming from an unknown source!

Can't open a .4sw 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 .4sw file extension is often given incorrectly!

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

4ws, esw, rsw, sw, tsw

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

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NI TestStand Workspace

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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If you have useful information about the .4sw file format, then write to us!

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