*
     * @return HTML response for the download page
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse downloadpage() {
        saveToken();
        return asDownloadHtml();
    }

    /**
     * Downloads elevate words data as a CSV file.
     *
     * @param form download form with export options
     * @return streaming response containing CSV data
     */