Display the file associated with the appletID.

def loadFile(self, fileName):
        """
        Display the file associated with the appletID.
        """

        # Assign QFile object with the current name.
        self.file = QtCore.QFile(fileName)
        if self.file.exists():
            self.qteText.append(open(fileName).read())
        else:
            msg = "File <b>{}</b> does not exist".format(self.qteAppletID())
            self.qteLogger.info(msg)