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.QTX File Extension

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File TypeQuickTime Extension

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CategoryPlugin Files


File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.


Component used by Apple QuickTime Player; enables support for additional video codecs and file formats; allows QuickTime to play video files encoded with third-party codecs; must be installed in the correct folder in order to be recognized by QuickTime.

More Information

Early versions of QuickTime for Windows store QTX files in "C:\Program Files\QuickTime\QTComponents." QuickTime 7 for Windows stores QTX files in the "C:\Windows\system32\" directory.

In Mac OS X, QTX files are stored in the "/Library/Quicktime/" folder.

Program(s) that open .QTX files
Microsoft Windows LogoWindows
Referenced by Apple QuickTime Player
Mac OS X LogoMac
Referenced by Apple QuickTime Player
Updated 6/4/2007