Home : File Types : UNKNOWN File

.UNKNOWN File Extension

File TypeUnknown File Type

4.1 (363 Votes)
CategoryMisc Files

What is a UNKNOWN file?

Unknown Windows file that does not have a file association; may have an ".unknown" extension to serve as a placeholder for the file's correct extension.

More Information

If you have a file with either no extension or an ".unknown" extension, you can try to view the contents of the file by opening the file with a text editor. However, if the file is saved in a binary format, a text editor will not display the file's contents correctly. If you believe you know what the file type is, you may try changing the extension to the appropriate suffix and then attempt to open the file.

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Programs that open UNKNOWN files
Original program that created the file
Updated 10/20/2009

About UNKNOWN Files

Our goal is to help you understand what a file with a *.unknown suffix is and how to open it.

The Unknown File Type file type, file format description, and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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