File extension UNKNOWN (.UNKNOWN) information

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Windows cannot open UNKNOWN files?

If Windows is unable to open file extension .UNKNOWN you may have registry related errors or may not have the appropriate program installed. We strongly recommend that you run a free registry scan.

Appropriate program:

UNKNOWN is a file extension associated with [None]. Incorrect associations are the cause of many file extension errors. Scan your system to prevent, identify and repair UNKNOWN file extension association errors.

Recommendations for file extension UNKNOWN users:

General information

Common errors/





File extension UNKNOWN scan

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You are currently viewing the detail page for UNKNOWN file extension. This page contains a detailed description of the UNKNOWN file type, software tools to help resolve file association errors in the Windows registry together with relevant system utility applications and other related information.
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