On Node.js a dashboard can be rendered and exported to an Excel workbook without a browser.

Load and export to Excel.
var Stimulsoft = require('stimulsoft-dashboards-js');

var report = Stimulsoft.Report.StiReport.createNewDashboard();
report.loadFile("Dashboard.mrt");

report.exportDocumentAsync(function (excelData) {
    var buffer = Buffer.from(excelData);
    require('fs').writeFileSync('./Dashboard.xlsx', buffer);
}, Stimulsoft.Report.StiExportFormat.Excel2007);

How it works. The export format is just an enum value, so the same headless flow produces Excel, PDF and other formats.
In the screenshot below you can see the result of the sample code:

Exporting a Dashboard to Excel

Hi. Need any help?