var fileName = 'Pianificazione Attività.xlsx';
	var startDate = new Date(); //TODO
	var endDate = new Date(new Date().getTime()+(1000*60*60*24*365*2)); //TODO
	
	//see link for luckysheet options
	// https://dream-num.github.io/LuckysheetDocs/guide/config.html#configuration-item
	//full readonly behavior set by geoweb as default
	var viewerOptions = {
	    //...
	};
	
	//it cointains properties destinated to groovy
	var groovyData = {
		groovy: 'export_pianificazione.groovy',
		fileName: fileName,
		startDate: startDate,
		endDate: endDate
	};
	
	var params = {
		href: gwContextPath+'/rest/exportByGroovyExecution',
		method: 'POST',
		fileName: fileName,
		data: groovyData,
		viewerOptions: viewerOptions
	};
	var title = 'title';
	openGwXlsxViewerTab(params, title);