.QXL File Extension
File TypeQuarkXPress Library
What is a QXL file?
QuarkXPress library that contains images, calendars, XTensions, or other content referenced by QuarkXPress; may be inserted into an open QuarkXPress document.
For example, the library of buttons used by the Mac version of QuarkXPress is named "Buttons_Mac.qxl." It can be opened using the standard File→Open command.