SheetJS/js-xlsx issue 719
var XLSX = require('xlsx');
var data = 'A,B,C\n100%,100,7/11/17';
data
/* normal behavior */
XLSX.read(data, {type:'binary'}).Sheets.Sheet1
/* when raw is true, return strings */
XLSX.read(data, {type:'binary', raw:true}).Sheets.Sheet1
no comments