use sheetjs to write and save a xlsx file

sheetjs_write_xlsx.ts

// https://github.com/SheetJS/sheetjs/tree/6551dd0e051acac5031ffb728a16932bbf34c80a
// npm install xlsx

import * as XLSX from 'xlsx';
const { writeFile, utils } = XLSX;

console.log('Create workbook');

const wb = utils.book_new();

const scoreData = [ {
    col1: 'A1',
    col2: 'B2',
    col3: 'C3'
}, {
    col1: 'A1',
    col2: 'B2',
    col3: 'C3'
}, {
    col1: 'A1',
    col2: 'B2',
    col3: 'C3'
}];

const documentData = [ {
    col1: 'D1',
    col2: 'E2',
    col3: 8
}, {
    col1: 'D1',
    col2: 'E2',
    col3: 9
}, {
    col1: 'D1',
    col2: 'E2',
    col3: 10
}]

const header = { header: ['col1', 'col2', 'col3'] };

const score_ws = utils.json_to_sheet(scoreData, header);
const document_ws = utils.json_to_sheet(documentData, header);

utils.book_append_sheet(wb, score_ws, 'Scores');
utils.book_append_sheet(wb, document_ws, 'Documents');
writeFile(wb, `hello_${Date.now()}.xlsx`, { bookType: 'xlsx' });

console.log('Done')

tsc sheetjs_write_xlsx.ts
node ./sheetjs_write_xlsx.js

// return stream to browser to force client download
var buffer = XLSX.write(new_wb, {type:'buffer', bookType:'xlsx'});
return bufer