CSV = https://www.npmjs.com/package/fast-csv XLSX = https://github.com/SheetJS/js-xlsx/tree/master/demos/server http://andriybuday.com/2016/02/working-with-excel-files-using-epplus-and-xlsx-js.html
CSV = https://www.npmjs.com/package/fast-csv XLSX = https://github.com/SheetJS/js-xlsx/tree/master/demos/server http://andriybuday.com/2016/02/working-with-excel-files-using-epplus-and-xlsx-js.html