Write that shows progress in statusbar for each <freq> cells

def write(self, *args, **kwargs):
        """Write that shows progress in statusbar for each <freq> cells"""

        self.progress_status()

        # Check abortes state and raise StopIteration if aborted
        if self.aborted:
            statustext = _("File saving aborted.")
            post_command_event(self.main_window, self.main_window.StatusBarMsg,
                               text=statustext)
            return False

        return self.parent_cls.write(self, *args, **kwargs)