public function exportTableratesAction()
    {
        $rates = Mage::getResourceModel('australia/shipping_carrier_eparcel_collection');
        $response = array(
            array(
                'Country',
                'Region/State',
                'Postcodes',
                'Weight from',
                'Weight to',
                'Parcel Cost',
                'Cost Per Kg',
                'Delivery Type',
                'Charge Code Individual',
                'Charge Code Business'
            )
        );

        foreach ($rates as $rate) {
            $countryId = $rate->getData('dest_country_id');
            $countryCode = Mage::getModel('directory/country')->load($countryId)->getIso3Code();
            $regionId = $rate->getData('dest_region_id');
            $regionCode = Mage::getModel('directory/region')->load($regionId)->getCode();

            $response[] = array(
                $countryCode,
                $regionCode,
                $rate->getData('dest_zip'),
                $rate->getData('condition_from_value'),
                $rate->getData('condition_to_value'),
                $rate->getData('price'),
                $rate->getData('price_per_kg'),
                $rate->getData('delivery_type'),
                $rate->getData('charge_code_individual'),
                $rate->getData('charge_code_business')
            );
        }

        $csv = new Varien_File_Csv();
        $temp = tmpfile();

        foreach ($response as $responseRow) {
            $csv->fputcsv($temp, $responseRow);
        }

        rewind($temp);

        $contents = stream_get_contents($temp);
        $this->_prepareDownloadResponse('tablerates.csv', $contents);

        fclose($temp);
    }