I Want a Help on Converting .xlsx file to .csv file conversion in my application it self

[Juan_Antonio]

Excel xlsx file to Json with JavaScript

Convert an Excel .xlsx file to Json using JavaScript. excel_to_json.htm <script src="xlsx.full.min.js"></script> <script> // Adaptado por kio4.com de: https://blog.bitsrc.io/csv-excel-to-json-in-javascript-70e61a1dc32d my_file = AppInventor.getWebViewString(); // INPUT // read Excel file and convert to json format using fetch fetch(my_file).then(function (res) { /* get the data as a Blob */ if (!res.ok) throw new Error("fetch failed"); return res.arrayBuffer(); }) .then(functio…