.QTXS File

The qtxs file extension is associated with the Apple QuickTime, a multimedia framework for Apple Mac OS X (macOS) used to create and store interactive multimedia content.

The .qtxs file stores various data used for internal purposes of the QuickTime.

Path:

/System/Library/QuickTime/QuickTimeComponents.component/Contents/Resources/

How to open:

Probably not meant to be accessed by the user.

How to convert:

These games files cannot be converted to anything else. However, sometimes modding.