importScripts('jszip.js'); importScripts('xlsx.js'); postMessage({t:"ready"}); onmessage = function (oEvent) { var v; try { v = XLSX.read(oEvent.data, {type: 'base64'}); } catch(e) { postMessage({t:"e",d:e.stack}); } postMessage({t:"xlsx", d:JSON.stringify(v)}); };