JSFiddle - React, Tailwind, and code Playground

by Sujit Kumar Singh

HTML

<script src="https://cdn.jsdelivr.net/alasql/0.3/alasql.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.7.12/xlsx.core.min.js"></script>

<button onclick="saveFile()">Save XLSX file</button>

JavaScript

window.saveFile = function saveFile () {
    var sheet_1_data = [{Col_One:1, Col_Two:11}, {Col_One:2, Col_Two:22}];
    var sheet_2_data = [{Col_One:10, Col_Two:110}, {Col_One:20, Col_Two:220}];
    var opts = [{sheetid:'Sheet One',header:true},{sheetid:'Sheet Two',header:false}];
    var result = alasql('SELECT * INTO XLSX("sample_file.xlsx",?) FROM ?', 
    									[opts,[sheet_1_data ,sheet_2_data]]);
}