eemcmc-excel-to-csv-inbrowser
/
index.html

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Excel To CSV | 仓鼠</title>
<meta name="author" content="toohamster">
<meta name="viewport" content="initial-scale=1.0,minimum-scale=1,maximum-scale=1,user-scalable=no">
<style>
#container{
	margin: 0 auto;
	width: 80%;
}
#container h1 {
	text-align: center;
}
#oop {
	border: 1px solid solid;
	min-height: 300px;
	background: gray;
	padding-left: 10px;
}
#drop{
	border:2px dashed #bbb;
	-moz-border-radius:5px;
	-webkit-border-radius:5px;
	border-radius:5px;
	padding:25px;
	text-align:center;
	font:20pt bold,"Vollkorn";color:#bbb;
}
</style>
</head>
<body>
<div id="container">
	<h1>Excel To CSV | 仓鼠</h1>
	输出格式:
	<select name="format">
	<option value="csv" selected> CSV</option>
	</select><br />

	<div id="drop">拖拽文件到此...</div>

	<p>
		<input type="file" name="xlfile" id="xlf" />&nbsp;&nbsp;&nbsp;
		<input type="button" id="fileExport" value="下载文件"/>
	</p>
	<div style="display:none;">
		useworker<input type="checkbox" name="useworker" checked><br />
		xferable<input type="checkbox" name="xferable" checked><br />
		userabs<input type="checkbox" name="userabs" checked><br />
	</div>
	<p></p>
	<div id="oop">
		<pre id="out"></pre>
	</div>
</div>
</body>
<!-- uncomment the next line here and in xlsxworker.js for encoding support -->
<script src="js/shim.js"></script>
<script src="js/jszip.js"></script>
<script src="js/xlsx.js"></script>
<!-- uncomment the next line here and in xlsxworker.js for ODS support -->
<script src="js/ods.js"></script>
<script src="js/sxexport.js"></script>
<script>
if (!String.prototype.trim) {
  String.prototype.trim = function () {
    return this.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
  };
}

var X = XLSX;
var XW = {
	/* worker message */
	msg: 'xlsx',
	/* worker scripts */
	rABS: './js/xlsxworker2.js',
	norABS: './js/xlsxworker1.js',
	noxfer: './js/xlsxworker.js'
};

var rABS = typeof FileReader !== "undefined" && typeof FileReader.prototype !== "undefined" && typeof FileReader.prototype.readAsBinaryString !== "undefined";
if(!rABS) {
	document.getElementsByName("userabs")[0].disabled = true;
	document.getElementsByName("userabs")[0].checked = false;
}

var use_worker = typeof Worker !== 'undefined';
if(!use_worker) {
	document.getElementsByName("useworker")[0].disabled = true;
	document.getElementsByName("useworker")[0].checked = false;
}

var transferable = use_worker;
if(!transferable) {
	document.getElementsByName("xferable")[0].disabled = true;
	document.getElementsByName("xferable")[0].checked = false;
}

var wtf_mode = false;

function fixdata(data) {
	var o = "", l = 0, w = 10240;
	for(; l<data.byteLength/w; ++l) o+=String.fromCharCode.apply(null,new Uint8Array(data.slice(l*w,l*w+w)));
	o+=String.fromCharCode.apply(null, new Uint8Array(data.slice(l*w)));
	return o;
}

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];
}

function xw_noxfer(data, cb) {
	var worker = new Worker(XW.noxfer);
	worker.onmessage = function(e) {
		switch(e.data.t) {
			case 'ready': break;
			case 'e': console.error(e.data.d); break;
			case XW.msg: cb(JSON.parse(e.data.d)); break;
		}
	};
	var arr = rABS ? data : btoa(fixdata(data));
	worker.postMessage({d:arr,b:rABS});
}

function xw_xfer(data, cb) {
	var worker = new Worker(rABS ? XW.rABS : XW.norABS);
	worker.onmessage = function(e) {
		switch(e.data.t) {
			case 'ready': break;
			case 'e': console.error(e.data.d); break;
			default: xx=ab2str(e.data).replace(/\n/g,"\\n").replace(/\r/g,"\\r"); console.log("done"); cb(JSON.parse(xx)); break;
		}
	};
	if(rABS) {
		var val = s2ab(data);
		worker.postMessage(val[1], [val[1]]);
	} else {
		worker.postMessage(data, [data]);
	}
}

function xw(data, cb) {
	transferable = document.getElementsByName("xferable")[0].checked;
	if(transferable) xw_xfer(data, cb);
	else xw_noxfer(data, cb);
}

function get_radio_value( radioName ) {
	var radios = document.getElementsByName( radioName );
	for( var i = 0; i < radios.length; i++ ) {
		if( radios[i].checked || radios.length === 1 ) {
			return radios[i].value;
		}
	}
}

function to_json(workbook) {
	var result = {};
	workbook.SheetNames.forEach(function(sheetName) {
		var roa = X.utils.sheet_to_row_object_array(workbook.Sheets[sheetName]);
		if(roa.length > 0){
			result[sheetName] = roa;
		}
	});
	return result;
}
var filePool = [];
function to_csv(workbook) {
	filePool = [];
	var result = [];
	var ind = 0;
	workbook.SheetNames.forEach(function(sheetName) {
		var csv = X.utils.sheet_to_csv(workbook.Sheets[sheetName]);
		if(csv.length > 0){
			result.push("工作簿: " + sheetName);
			result.push("");
			result.push(csv);
			filePool.push({name: sheetName + (ind++) + '.csv', content: csv});
		}
	});
	return result.join("\n");
}

function to_formulae(workbook) {
	var result = [];
	workbook.SheetNames.forEach(function(sheetName) {
		var formulae = X.utils.get_formulae(workbook.Sheets[sheetName]);
		if(formulae.length > 0){
			result.push("工作簿: " + sheetName);
			result.push("");
			result.push(formulae.join("\n"));
		}
	});
	return result.join("\n");
}

function process_wb(wb) {
	output = to_csv(wb);
	if(out.innerText === undefined) out.textContent = output;
	else out.innerText = output;
	if(typeof console !== 'undefined') console.log("output", new Date());
}

var drop = document.getElementById('drop');
function handleDrop(e) {
	e.stopPropagation();
	e.preventDefault();
	rABS = document.getElementsByName("userabs")[0].checked;
	use_worker = document.getElementsByName("useworker")[0].checked;
	var files = e.dataTransfer.files;
	var f = files[0];
	{
		var reader = new FileReader();
		var name = f.name;
		reader.onload = function(e) {
			if(typeof console !== 'undefined') console.log("onload", new Date(), rABS, use_worker);
			var data = e.target.result;
			if(use_worker) {
				xw(data, process_wb);
			} else {
				var wb;
				if(rABS) {
					wb = X.read(data, {type: 'binary'});
				} else {
				var arr = fixdata(data);
					wb = X.read(btoa(arr), {type: 'base64'});
				}
				process_wb(wb);
			}
		};
		if(rABS) reader.readAsBinaryString(f);
		else reader.readAsArrayBuffer(f);
	}
}

function handleDragover(e) {
	e.stopPropagation();
	e.preventDefault();
	e.dataTransfer.dropEffect = 'copy';
}

if(drop.addEventListener) {
	drop.addEventListener('dragenter', handleDragover, false);
	drop.addEventListener('dragover', handleDragover, false);
	drop.addEventListener('drop', handleDrop, false);
}

var xlf = document.getElementById('xlf');
function handleFile(e) {
	rABS = document.getElementsByName("userabs")[0].checked;
	use_worker = document.getElementsByName("useworker")[0].checked;
	var files = e.target.files;
	var f = files[0];
	{
		var reader = new FileReader();
		var name = f.name;
		reader.onload = function(e) {
			if(typeof console !== 'undefined') console.log("onload", new Date(), rABS, use_worker);
			var data = e.target.result;
			if(use_worker) {
				xw(data, process_wb);
			} else {
				var wb;
				if(rABS) {
					wb = X.read(data, {type: 'binary'});
				} else {
				var arr = fixdata(data);
					wb = X.read(btoa(arr), {type: 'base64'});
				}
				process_wb(wb);
			}
		};
		if(rABS) reader.readAsBinaryString(f);
		else reader.readAsArrayBuffer(f);
	}
}

if(xlf.addEventListener) xlf.addEventListener('change', handleFile, false);

// 导出按钮
var btnSave = document.getElementById('fileExport');

var csvParser = new SimpleExcel.Parser.CSV();
var csvWriter = new SimpleExcel.Writer.CSV();
btnSave.addEventListener('click', function (e) {

	while (filePool.length > 0)
	{
		var file = filePool.pop();
		csvParser.loadString(file.content, 0);
		csvWriter.insertSheet(csvParser.getSheet(1));
		csvWriter.saveFile(file.name);
		csvParser._sheet = [];
		csvWriter._sheet = [];
	}
});

</script>

</html>