Angular..SpreadhSheet..ExportData from the grille to Excel FIle

im working with x-data-spreadsheet and i want to export all my data in the grille into a file excel. i used this.spreadsheet.getData() to get all the data than try to export it but nothin..any help plz.
output are array of objects.

exportDataToExcel(): void {

const data = this.spreadsheet.getData();
console.log("Data : ",data);
console.log("TYPE : ",typeof data);
const ws: XLSX.WorkSheet = XLSX.utils.aoa_to_sheet(data)
const wb: XLSX.WorkBook = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(wb, ws, 'Sheet1');
const fileName = 'spreadsheet_data.xlsx';
XLSX.writeFile(wb, fileName);


i expecting to export all my data in the grille to a excel file

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