docs.sheetjs.com/docz/static/cdg/index.html

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<!DOCTYPE html>
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<!-- sheetjs (C) 2013-present SheetJS https://sheetjs.com -->
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<!-- vim: set ts=2: -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<meta name="robots" content="noindex"/>
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<title>SheetJS + canvas-datagrid Live Demo</title>
<style>
#drop{
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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
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}
#b64data{
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width:100%;
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}
a { text-decoration: none }
</style>
</head>
<body>
<pre>
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<b><a href="https://sheetjs.com">SheetJS + canvas-datagrid Demo</a></b>
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<div id="drop">Drop a spreadsheet file here to see sheet data</div>
<input type="file" name="xlfile" id="xlf" /> ... or click here to select a file
<textarea id="b64data">... or paste a base64-encoding here</textarea>
<b>Advanced Demo Options:</b>
</pre>
<p><input type="submit" value="Export to XLSX!" id="xport" onclick="export_xlsx();" disabled="true"></p>
<div id="htmlout"></div>
<br />
<script src="https://unpkg.com/canvas-datagrid/dist/canvas-datagrid.js"></script>
<script src="https://cdn.sheetjs.com/xlsx-latest/package/dist/shim.min.js"></script>
<script src="https://cdn.sheetjs.com/xlsx-latest/package/dist/xlsx.full.min.js"></script>
<script>
/*jshint browser:true */
/* eslint-env browser */
/* eslint no-use-before-define:0 */
/*global Uint8Array, Uint16Array, ArrayBuffer */
/*global XLSX */
var cDg;
var process_wb = (function() {
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var XPORT = document.getElementById('xport');
var HTMLOUT = document.getElementById('htmlout');
return function process_wb(wb) {
/* get data */
var ws = wb.Sheets[wb.SheetNames[0]];
var data = XLSX.utils.sheet_to_json(ws, {header:1});
/* update canvas-datagrid */
if(!cDg) cDg = canvasDatagrid({ parentNode:HTMLOUT, data:data });
cDg.style.height = '100%';
cDg.style.width = '100%';
cDg.data = data;
XPORT.disabled = false;
/* create schema (for A,B,C column headings) */
var range = XLSX.utils.decode_range(ws['!ref']);
for(var i = range.s.c; i <= range.e.c; ++i) cDg.schema[i - range.s.c].title = XLSX.utils.encode_col(i);
HTMLOUT.style.height = (window.innerHeight - 400) + "px";
HTMLOUT.style.width = (window.innerWidth - 50) + "px";
if(typeof console !== 'undefined') console.log("output", new Date());
};
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})();
var do_file = (function() {
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return function do_file(files) {
var f = files[0];
var reader = new FileReader();
reader.onload = function(e) {
if(typeof console !== 'undefined') console.log("onload", new Date());
var data = e.target.result;
data = new Uint8Array(data);
process_wb(XLSX.read(data, {type: 'array'}));
};
reader.readAsArrayBuffer(f);
};
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})();
(function() {
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var drop = document.getElementById('drop');
if(!drop.addEventListener) return;
function handleDrop(e) {
e.stopPropagation();
e.preventDefault();
do_file(e.dataTransfer.files);
}
function handleDragover(e) {
e.stopPropagation();
e.preventDefault();
e.dataTransfer.dropEffect = 'copy';
}
drop.addEventListener('dragenter', handleDragover, false);
drop.addEventListener('dragover', handleDragover, false);
drop.addEventListener('drop', handleDrop, false);
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})();
(function() {
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var xlf = document.getElementById('xlf');
if(!xlf.addEventListener) return;
function handleFile(e) { do_file(e.target.files); }
xlf.addEventListener('change', handleFile, false);
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})();
var export_xlsx = (function() {
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function prep(arr) {
var out = [];
for(var i = 0; i < arr.length; ++i) {
if(!arr[i]) continue;
if(Array.isArray(arr[i])) { out[i] = arr[i]; continue };
var o = new Array();
Object.keys(arr[i]).forEach(function(k) { o[+k] = arr[i][k] });
out[i] = o;
}
return out;
}
return function export_xlsx() {
if(!cDg) return;
/* convert canvas-datagrid data to worksheet */
var new_ws = XLSX.utils.aoa_to_sheet(prep(cDg.data));
/* build workbook */
var new_wb = XLSX.utils.book_new();
XLSX.utils.book_append_sheet(new_wb, new_ws, 'SheetJS');
/* write file and trigger a download */
XLSX.writeFile(new_wb, 'SheetJSCanvasDataGridExport.xlsx', {bookSST:true});
};
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})();
(async() => {
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const ab = await(await fetch("https://docs.sheetjs.com/pres.numbers")).arrayBuffer();
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process_wb(XLSX.read(ab));
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})();
</script>
<script type="text/javascript">
/* eslint no-use-before-define:0 */
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var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-36810333-1']);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
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</script>
</body>
</html>