.UNK File Extension

There is only one file type that uses the .UNK extension:

Unknown File

Unknown File
  • Developer N/A
  • Popularity
    2.1 (18 votes)
  • Category Misc Files
  • Format N/A

Unknown file that does not have a file association; may contain file contents from an original file that was unrecognized by any program; created typically as a default extension for a corrupted or unknown file that is found in email attachments or downloads from the Web.

NOTE: Do not attempt to open UNK files unless you are certain of their content since they may contain a virus.

Software's name License Platforms
Original program that created the file Original program that created the file MacWindows

Updated: January 14, 2010

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