sheetjs-clone/xlsxworker2.js

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/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
/* uncomment the next line for encoding support */
//importScripts('dist/cpexcel.js');
importScripts('jszip.js');
importScripts('xlsx.js');
/* uncomment the next line for ODS support */
importScripts('dist/ods.js');
postMessage({t:"ready"});
function ab2str(data) {
var o = "", l = 0, w = 10240;
for(; l<data.byteLength/w; ++l) o+=String.fromCharCode.apply(null,new Uint16Array(data.slice(l*w,l*w+w)));
o+=String.fromCharCode.apply(null, new Uint16Array(data.slice(l*w)));
return o;
}
function s2ab(s) {
var b = new ArrayBuffer(s.length*2), v = new Uint16Array(b);
for (var i=0; i != s.length; ++i) v[i] = s.charCodeAt(i);
return [v, b];
}
onmessage = function (oEvent) {
var v;
try {
v = XLSX.read(ab2str(oEvent.data), {type: 'binary'});
} catch(e) { postMessage({t:"e",d:e.stack}); }
var res = {t:"xlsx", d:JSON.stringify(v)};
var r = s2ab(res.d)[1];
postMessage(r, [r]);
};