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/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */var XLSX = require('xlsx');var fs = require('fs');
onmessage = function(e) {	try { switch(e.data.action) {		case 'write':			var ws = XLSX.utils.aoa_to_sheet(e.data.data);			var wb = XLSX.utils.book_new();			XLSX.utils.book_append_sheet(wb, ws, "SheetJS");			postMessage({data: XLSX.write(wb, {type:'binary', bookType:e.data.type || e.data.file.match(/\.([^\.]*)$/)[1]})});			break;		case 'read':			var wb;			if(e.data.file) wb = XLSX.readFile(e.data.file);			else wb = XLSX.read(e.data.data);			var ws = wb.Sheets[wb.SheetNames[0]];			postMessage({data: XLSX.utils.sheet_to_json(ws, {header:1})});			break;		default: throw "unknown action";	}} catch(e) { postMessage({err:e.message || e}); }};