diff --git a/plugins/woocommerce-admin/includes/api/class-wc-admin-rest-reports-export-controller.php b/plugins/woocommerce-admin/includes/api/class-wc-admin-rest-reports-export-controller.php
index e0d263dc544..5d9e76fb764 100644
--- a/plugins/woocommerce-admin/includes/api/class-wc-admin-rest-reports-export-controller.php
+++ b/plugins/woocommerce-admin/includes/api/class-wc-admin-rest-reports-export-controller.php
@@ -222,7 +222,12 @@ class WC_Admin_REST_Reports_Export_Controller extends WC_Admin_REST_Reports_Cont
 
 		// @todo - add thing in the links below instead?
 		if ( 100 === $percentage ) {
-			$result['download_url'] = rest_url( sprintf( '%s/reports/%s/export/%s/download', $this->namespace, $report_type, $export_id ) );
+			$query_args = array(
+				'action'   => WC_Admin_Report_Exporter::DOWNLOAD_EXPORT_ACTION,
+				'filename' => "wc-{$report_type}-report-export-{$export_id}",
+			);
+
+			$result['download_url'] = add_query_arg( $query_args, admin_url() );
 		}
 
 		// Wrap the data in a response object.
diff --git a/plugins/woocommerce-admin/includes/export/class-wc-admin-report-csv-exporter.php b/plugins/woocommerce-admin/includes/export/class-wc-admin-report-csv-exporter.php
index c18821c6c45..887952edcb9 100644
--- a/plugins/woocommerce-admin/includes/export/class-wc-admin-report-csv-exporter.php
+++ b/plugins/woocommerce-admin/includes/export/class-wc-admin-report-csv-exporter.php
@@ -47,12 +47,17 @@ class WC_Admin_Report_CSV_Exporter extends WC_CSV_Batch_Exporter {
 	 * @param string $type Report type. E.g. 'customers'.
 	 * @param array  $args Report parameters.
 	 */
-	public function __construct( $type, $args ) {
+	public function __construct( $type = false, $args = array() ) {
 		parent::__construct();
 
-		$this->set_report_type( $type );
-		$this->set_report_args( $args );
-		$this->set_column_names( $this->get_report_columns() );
+		if ( ! empty( $type ) ) {
+			$this->set_report_type( $type );
+			$this->set_column_names( $this->get_report_columns() );
+		}
+
+		if ( ! empty( $args ) ) {
+			$this->set_report_args( $args );
+		}
 	}
 
 	/**
diff --git a/plugins/woocommerce-admin/includes/export/class-wc-admin-report-exporter.php b/plugins/woocommerce-admin/includes/export/class-wc-admin-report-exporter.php
index fb424e88a38..2b4a99a273d 100644
--- a/plugins/woocommerce-admin/includes/export/class-wc-admin-report-exporter.php
+++ b/plugins/woocommerce-admin/includes/export/class-wc-admin-report-exporter.php
@@ -28,6 +28,11 @@ class WC_Admin_Report_Exporter {
 	 */
 	const EXPORT_STATUS_OPTION = 'wc_admin_report_export_status';
 
+	/**
+	 * Export file download action.
+	 */
+	const DOWNLOAD_EXPORT_ACTION = 'woocommerce_admin_download_report_csv';
+
 	/**
 	 * Queue instance.
 	 *
@@ -63,6 +68,8 @@ class WC_Admin_Report_Exporter {
 	public static function init() {
 		// Initialize scheduled action handlers.
 		add_action( self::REPORT_EXPORT_ACTION, array( __CLASS__, 'report_export_action' ), 10, 4 );
+		// Report download handler.
+		add_action( 'admin_init', array( __CLASS__, 'download_export_file' ) );
 	}
 
 	/**
@@ -156,6 +163,22 @@ class WC_Admin_Report_Exporter {
 
 		return false;
 	}
+
+	/**
+	 * Serve the export file.
+	 */
+	public static function download_export_file() {
+		// @todo - add nonce? (nonces are good for 24 hours)
+		if (
+			isset( $_GET['action'] ) &&
+			! empty( $_GET['filename'] ) &&
+			self::DOWNLOAD_EXPORT_ACTION === wp_unslash( $_GET['action'] ) // WPCS: input var ok, sanitization ok.
+		) {
+			$exporter = new WC_Admin_Report_CSV_Exporter();
+			$exporter->set_filename( wp_unslash( $_GET['filename'] ) ); // WPCS: input var ok, sanitization ok.
+			$exporter->export();
+		}
+	}
 }
 
 WC_Admin_Report_Exporter::init();