How to export html table to excel using javascript

My table is in format

<table id="mytable">
<thead>
  <tr>
    <th>name</th>
    <th>place</th>
  </tr>
</thead>
<tbody>
<tr>
   <td>adfas</td>
   <td>asdfasf</td>
</tr>
</tbody>
</table>

I found the following code online. But it doesn't work if i use "thead" and "tbody" tags

function write_to_excel() {

    str = "";

    var mytable = document.getElementsByTagName("table")[0];
    var rowCount = mytable.rows.length;
    var colCount = mytable.getElementsByTagName("tr")[0].getElementsByTagName("td").length;

    var ExcelApp = new ActiveXObject("Excel.Application");
    var ExcelSheet = new ActiveXObject("Excel.Sheet");
    ExcelSheet.Application.Visible = true;

    for (var i = 0; i < rowCount; i++) {
        for (var j = 0; j < colCount; j++) {
            str = mytable.getElementsByTagName("tr")[i].getElementsByTagName("td")[j].innerHTML;
            ExcelSheet.ActiveSheet.Cells(i + 1, j + 1).Value = str;
        }
    }

Answers:

Answer

The reason the solution you found on the internet is no working is because of the line that starts var colCount. The variable mytable only has two elements being <thead> and <tbody>. The var colCount line is looking for all the elements within mytable that are <tr>. The best thing you can do is give an id to your <thead> and <tbody> and then grab all the values based on that. Say you had <thead id='headers'> :

function write_headers_to_excel() 
{
  str="";

  var myTableHead = document.getElementById('headers');
  var rowCount = myTableHead.rows.length;
  var colCount = myTableHead.getElementsByTagName("tr")[0].getElementsByTagName("th").length; 

var ExcelApp = new ActiveXObject("Excel.Application");
var ExcelSheet = new ActiveXObject("Excel.Sheet");
ExcelSheet.Application.Visible = true;

for(var i=0; i<rowCount; i++) 
{   
    for(var j=0; j<colCount; j++) 
    {           
        str= myTableHead.getElementsByTagName("tr")[i].getElementsByTagName("th")[j].innerHTML;
        ExcelSheet.ActiveSheet.Cells(i+1,j+1).Value = str;
    }
}

}

and then do the same thing for the <tbody> tag.

EDIT: I would also highly recommend using jQuery. It would shorten this up to:

function write_to_excel() 
{
 var ExcelApp = new ActiveXObject("Excel.Application");
 var ExcelSheet = new ActiveXObject("Excel.Sheet");
 ExcelSheet.Application.Visible = true; 

  $('th, td').each(function(i){
    ExcelSheet.ActiveSheet.Cells(i+1,i+1).Value = this.innerHTML;
  });
}

Now, of course, this is going to give you some formatting issues but you can work out how you want it formatted in Excel.

EDIT: To answer your question about how to do this for n number of tables, the jQuery will do this already. To do it in raw Javascript, grab all the tables and then alter the function to be able to pass in the table as a parameter. For instance:

var tables = document.getElementsByTagName('table');
for(var i = 0; i < tables.length; i++)
{
  write_headers_to_excel(tables[i]);
  write_bodies_to_excel(tables[i]);
}

Then change the function write_headers_to_excel() to function write_headers_to_excel(table). Then change var myTableHead = document.getElementById('headers'); to var myTableHead = table.getElementsByTagName('thead')[0];. Same with your write_bodies_to_excel() or however you want to set that up.

Answer

Only works in Mozilla, Chrome and Safari..

$(function() {
  $('button').click(function() {
    var url = 'data:application/vnd.ms-excel,' + encodeURIComponent($('#tableWrap').html())
    location.href = url
    return false
  })
});
<script type="text/javascript" src="http://code.jquery.com/jquery-1.9.0.js">
</script>
<button>click me</button>
<div id="tableWrap">
  <table>
    <thead>
      <tr>
        <th>A</th>
        <th>B</th>
        <th>C</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>1</td>
        <td>2</td>
        <td>3</td>
      </tr>
      <tr>
        <td>1</td>
        <td>2</td>
        <td>3</td>
      </tr>
      <tr>
        <td>1</td>
        <td>2</td>
        <td>3</td>
      </tr>
      <tr>
        <td>1</td>
        <td>2</td>
        <td>3</td>
      </tr>
    </tbody>
  </table>
</div>

Answer

Check https://github.com/linways/table-to-excel. Its a wrapper for exceljs/exceljs to export html tables to xlsx.

TableToExcel.convert(document.getElementById("simpleTable1"));
<script src="https://cdn.jsdelivr.net/gh/linways/[email protected]/dist/tableToExcel.js"></script>
<table id="simpleTable1" data-cols-width="70,15,10">
<tbody>
    <tr>
        <td class="header" colspan="5" data-f-sz="25" data-f-color="FFFFAA00" data-a-h="center" data-a-v="middle" data-f-underline="true">
            Sample Excel
        </td>
    </tr>
    <tr>
        <td colspan="5" data-f-italic="true" data-a-h="center" data-f-name="Arial" data-a-v="top">
            Italic and horizontal center in Arial
        </td>
    </tr>
    <tr>
        <th data-a-text-rotation="90">Col 1 (number)</th>
        <th data-a-text-rotation="vertical">Col 2</th>
        <th data-a-wrap="true">Wrapped Text</th>
        <th data-a-text-rotation="-45">Col 4 (date)</th>
        <th data-a-text-rotation="-90">Col 5</th>
    </tr>
    <tr>
        <td rowspan="1" data-t="n">1</td>
        <td rowspan="1" data-b-b-s="thick" data-b-l-s="thick" data-b-r-s="thick">
            ABC1
        </td>
        <td rowspan="1" data-f-strike="true">Striked Text</td>
        <td data-t="d">05-20-2018</td>
        <td data-t="n" data-num-fmt="$ 0.00">2210.00</td>
    </tr>

    <tr>
        <td rowspan="2" data-t="n">2</td>
        <td rowspan="2" data-fill-color="FFFF0000" data-f-color="FFFFFFFF">
            ABC 2
        </td>
        <td rowspan="2" data-a-indent="3">Merged cell</td>
        <td data-t="d">05-21-2018</td>
        <td data-t="n" data-b-a-s="dashed" data-num-fmt="$ 0.00">230.00</td>
    </tr>
    <tr>
        <td data-t="d">05-22-2018</td>

        <td data-t="n" data-num-fmt="$ 0.00">2493.00</td>
    </tr>

    <tr>
        <td colspan="4" align="right" data-f-bold="true" data-a-h="right" data-hyperlink="https://google.com">
            <b><a href="https://google.com">Hyperlink</a></b>
        </td>
        <td colspan="1" align="right" data-t="n" data-f-bold="true" data-num-fmt="$ 0.00">
            <b>4933.00</b>
        </td>
    </tr>
    <tr>
        <td colspan="4" align="right" data-f-bold="true" data-a-rtl="true">
            ?????
        </td>
        <td colspan="1" align="right" data-t="n" data-f-bold="true" data-num-fmt="$ 0.00">
            <b>2009.00</b>
        </td>
    </tr>
    <tr>
        <td data-b-a-s="dashed" data-b-a-c="FFFF0000">All borders</td>
    </tr>
    <tr>
        <td data-t="b">true</td>
        <td data-t="b">false</td>
        <td data-t="b">1</td>
        <td data-t="b">0</td>
        <td data-error="#VALUE!">Value Error</td>
    </tr>
    <tr>
        <td data-b-t-s="thick" data-b-l-s="thick" data-b-b-s="thick" data-b-r-s="thick" data-b-t-c="FF00FF00" data-b-l-c="FF00FF00" data-b-b-c="FF00FF00" data-b-r-c="FF00FF00">
            All borders separately
        </td>
    </tr>
    <tr data-exclude="true">
        <td>Excluded row</td>
        <td>Something</td>
    </tr>
    <tr>
        <td>Included Cell</td>
        <td data-exclude="true">Excluded Cell</td>
        <td>Included Cell</td>
    </tr>
</tbody>
</table>

This creates valid xlsx on the client side. Also supports some basic styling. Check https://codepen.io/rohithb/pen/YdjVbb for a working example.

Answer

This might be a better answer copied from this question. Please try it and give opinion here. Please vote up if found useful. Thank you.

<script type="text/javascript">
function generate_excel(tableid) {
  var table= document.getElementById(tableid);
  var html = table.outerHTML;
  window.open('data:application/vnd.ms-excel;base64,' + base64_encode(html));
}

function base64_encode (data) {
  // http://kevin.vanzonneveld.net
  // +   original by: Tyler Akins (http://rumkin.com)
  // +   improved by: Bayron Guevara
  // +   improved by: Thunder.m
  // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  // +   bugfixed by: Pellentesque Malesuada
  // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  // +   improved by: Rafal Kukawski (http://kukawski.pl)
  // *     example 1: base64_encode('Kevin van Zonneveld');
  // *     returns 1: 'S2V2aW4gdmFuIFpvbm5ldmVsZA=='
  // mozilla has this native
  // - but breaks in 2.0.0.12!
  //if (typeof this.window['btoa'] == 'function') {
  //    return btoa(data);
  //}
  var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
  var o1, o2, o3, h1, h2, h3, h4, bits, i = 0,
    ac = 0,
    enc = "",
    tmp_arr = [];

  if (!data) {
    return data;
  }

  do { // pack three octets into four hexets
    o1 = data.charCodeAt(i++);
    o2 = data.charCodeAt(i++);
    o3 = data.charCodeAt(i++);

    bits = o1 << 16 | o2 << 8 | o3;

    h1 = bits >> 18 & 0x3f;
    h2 = bits >> 12 & 0x3f;
    h3 = bits >> 6 & 0x3f;
    h4 = bits & 0x3f;

    // use hexets to index into b64, and append result to encoded string
    tmp_arr[ac++] = b64.charAt(h1) + b64.charAt(h2) + b64.charAt(h3) + b64.charAt(h4);
  } while (i < data.length);

  enc = tmp_arr.join('');

  var r = data.length % 3;

  return (r ? enc.slice(0, r - 3) : enc) + '==='.slice(r || 3);

}
</script>
Answer
Excel Export Script works on IE7+ , Firefox and Chrome
===========================================================



function fnExcelReport()
    {
             var tab_text="<table border='2px'><tr bgcolor='#87AFC6'>";
             var textRange; var j=0;
          tab = document.getElementById('headerTable'); // id of table


          for(j = 0 ; j < tab.rows.length ; j++) 
          {     
                tab_text=tab_text+tab.rows[j].innerHTML+"</tr>";
                //tab_text=tab_text+"</tr>";
          }

          tab_text=tab_text+"</table>";
          tab_text= tab_text.replace(/<A[^>]*>|<\/A>/g, "");//remove if u want links in your table
          tab_text= tab_text.replace(/<img[^>]*>/gi,""); // remove if u want images in your table
                      tab_text= tab_text.replace(/<input[^>]*>|<\/input>/gi, ""); // reomves input params

               var ua = window.navigator.userAgent;
              var msie = ua.indexOf("MSIE "); 

                 if (msie > 0 || !!navigator.userAgent.match(/Trident.*rv\:11\./))      // If Internet Explorer
                    {
                           txtArea1.document.open("txt/html","replace");
                           txtArea1.document.write(tab_text);
                           txtArea1.document.close();
                           txtArea1.focus(); 
                            sa=txtArea1.document.execCommand("SaveAs",true,"Say Thanks to Sumit.xls");
                          }  
                  else                 //other browser not tested on IE 11
                      sa = window.open('data:application/vnd.ms-excel,' + encodeURIComponent(tab_text));  


                      return (sa);
                            }

    Just Create a blank iframe
    enter code here
        <iframe id="txtArea1" style="display:none"></iframe>

    Call this function on

        <button id="btnExport" onclick="fnExcelReport();"> EXPORT 
        </button>
Answer

Check this out... I just got this working and it seems exactly what you are trying to do as well.

2 functions. One to select the table and copy it to the clipboard, and the second writes it to excel en masse. Just call write_to_excel() and put in your table id (or modify it to take it as an argument).

  function selectElementContents(el) {
        var body = document.body, range, sel;
        if (document.createRange && window.getSelection) {
            range = document.createRange();
            sel = window.getSelection();
            sel.removeAllRanges();
            try {
                range.selectNodeContents(el);
                sel.addRange(range);
            } catch (e) {
                range.selectNode(el);
                sel.addRange(range);
            }
        } else if (body.createTextRange) {
            range = body.createTextRange();
            range.moveToElementText(el);
            range.select();
        }
        range.execCommand("Copy");
    }

function write_to_excel() 
{
var tableID = "AllItems";
selectElementContents( document.getElementById(tableID) );

var excel = new ActiveXObject("Excel.Application");
// excel.Application.Visible = true; 
var wb=excel.WorkBooks.Add();
var ws=wb.Sheets("Sheet1");
ws.Cells(1,1).Select;
ws.Paste;
ws.DrawingObjects.Delete;
ws.Range("A1").Select
 excel.Application.Visible = true; 
}

Heavily influenced from: Select a complete table with Javascript (to be copied to clipboard)

Answer

I try this with jquery; use this and have fun :D

    jQuery.printInExcel = function (DivID) 
{ 
var ExcelApp = new ActiveXObject("Excel.Application"); 
ExcelApp.Workbooks.Add; 
ExcelApp.visible = true; 
var str = ""; 
var tblcount = 0; 
var trcount = 0;
 $("#" + DivID + " table").each(function () 
{ $(this).find("tr").each(function () 
{ var tdcount = 0; $(this).find("td").each(function () 
{ str = str + $(this).text(); ExcelApp.Cells(trcount + 1, tdcount + 1).Value = str; 
str = ""; tdcount++ 
}); 
trcount++ 
}); tblcount++ 
}); 
};

use this in your class and call it with $.printInExcel(your var);

Answer
    function XLExport() {
        try {
            var i;
            var j;
            var mycell;
            var tableID = "tblInnerHTML";

            var objXL = new ActiveXObject("Excel.Application");
            var objWB = objXL.Workbooks.Add();
            var objWS = objWB.ActiveSheet;

            for (i = 0; i < document.getElementById('<%= tblAuditReport.ClientID %>').rows.length; i++) {
                for (j = 0; j < document.getElementById('<%= tblAuditReport.ClientID %>').rows(i).cells.length; j++) {
                    mycell = document.getElementById('<%= tblAuditReport.ClientID %>').rows(i).cells(j);
                    objWS.Cells(i + 1, j + 1).Value = mycell.innerText;
                }
            }

            //objWS.Range("A1", "L1").Font.Bold = true;

            objWS.Range("A1", "Z1").EntireColumn.AutoFit();

            //objWS.Range("C1", "C1").ColumnWidth = 50;

            objXL.Visible = true;

        }
        catch (err) {
                    }

    }
Answer

I think you can also think of alternative architectures. Sometimes something can be done in another way much more easier. If the producer of HTML file is you, then you can write an HTTP handler to create an Excel document on the server (which is much more easier than in JavaScript) and send a file to the client. If you receive that HTML file from somewhere (like an HTML version of a report), then you still can use a server side language like C# or PHP to create the Excel file still very easily. I mean, you may have other ways too. :)

Answer

I would suggest using a different approach. Add a button on the webpage that will copy the content of the table to the clipboard, with TAB chars between columns and newlines between rows. This way the "paste" function in Excel should work correctly and your web application will also work with many browsers and on many operating systems (linux, mac, mobile) and users will be able to use the data also with other spreadsheets or word processing programs.

The only tricky part is to copy to the clipboard because many browsers are security obsessed on this. A solution is to prepare the data already selected in a textarea, and show it to the user in a modal dialog box where you tell the user to copy the text (some will need to type Ctrl-C, others Command-c, others will use a "long touch" or a popup menu).

It would be nicer to have a standard copy-to-clipboard function that possibly requests a user confirmation... but this is not the case, unfortunately.

Tags

Recent Questions

Top Questions

Home Tags Terms of Service Privacy Policy DMCA Contact Us

©2020 All rights reserved.