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.CNT File Extension

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File TypeHelp Contents File

DeveloperMicrosoft
Popularity
4.2 (9 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategorySystem Files
FormatText

Text

This file is saved in a plain text format. You can open and view the contents of this file using a text editor.

Definition

Help file used by Windows and Windows applications; stores topics for a Help document (.HLP file) in a plain text format; commonly installed with an application that uses Microsoft Help as the help documentation format.

More Information

CNT files can be created with Microsoft Help Workshop, an older program for creating help documentation. Older help documents can be updated to the newer HTML Help Workshop format (.HHC files) using HTML Help Workshop.

NOTE: Do not open unknown CNT files, since there is a known security issue that exploits a buffer overflow condition allowing malicious code to be executed on the computer.

Program(s) that open .CNT files
Microsoft Windows LogoWindows
Microsoft HTML Help Workshop
Updated 1/23/2012