Pivot Grid Export to Excel Problem

[logibricks]

Hello, I am getting this error while exporting the pivot grid.
drreport:1526 Uncaught ReferenceError: saveAs is not defined
    at e.(anonymous function).(anonymous function).listener (http://localhost:63220/report/drreport:1526:29)
    at HTMLButtonElement.<anonymous> (pqgrid.min.js:13)
    at HTMLButtonElement.dispatch (jquery.min.js:3)
    at HTMLButtonElement.r.handle (jquery.min.js:3)

And My code is.
{
                        type: 'button',
                        label: "Export to Excel(xlsx)",
                        icon: 'ui-icon-document',
                        listener: function (evt) {
                            var str = this.exportExcel({ render: true });
                            saveAs(str, "pivot.xlsx");
                        }
                    },

[paramvir]

you need to include FileSaver.js file as mentioned in this demo for local export:

https://paramquery.com/pro/demos/export_local