>> UNKNOWN file

UNKNOWN file format description

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

1 filename extension(s) found in our database.

.unknown - Unknown File

The UNKNOWN file extension is currently unknown, according to our knowledge it has not yet been specified or assigned to an application. If you found an UNKNOWN file of unknown origin on your computer, it's possible that a dangerous software had created it. If you have helpful information about this file extension, write to us!

Unknown files
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Unknown File related extensions:
Unknown JTN File
Unknown IGU File
Unknown GZ2 File
Unknown IRNB File
Unknown PWU File
Unknown GVX File

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

Can't open a .unknown 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.

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

If you find the information on this page useful, please feel free to link to this page.

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

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