.QTP File Extension
QuickTime Preferences File
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What is a QTP file?
Preferences file created by QuickTime, a video playback program; contains preferences such as connection speed, software update options, taskbar icon display, and file association notifications; used to remember and automatically apply user preferences within QuickTime.
QTP files only apply to the Windows version of QuickTime. They are stored with the name QuickTime.qtp and are typically located in the AppData\Apple Computer\QuickTime user directory.