How do I export multiple html tables to excel?

Solution 1:

var tablesToExcel = (function () {
    var uri = 'data:application/vnd.ms-excel;base64,'
    , template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets>'
    , templateend = '</x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head>'
    , body = '<body>'
    , tablevar = '<table>{table'
    , tablevarend = '}</table>'
    , bodyend = '</body></html>'
    , worksheet = '<x:ExcelWorksheet><x:Name>'
    , worksheetend = '</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet>'
    , worksheetvar = '{worksheet'
    , worksheetvarend = '}'
    , base64 = function (s) { return window.btoa(unescape(encodeURIComponent(s))) }
    , format = function (s, c) { return s.replace(/{(\w+)}/g, function (m, p) { return c[p]; }) }
    , wstemplate = ''
    , tabletemplate = '';

    return function (table, name, filename) {
        var tables = table;

        for (var i = 0; i < tables.length; ++i) {
            wstemplate += worksheet + worksheetvar + i + worksheetvarend + worksheetend;
            tabletemplate += tablevar + i + tablevarend;
        }

        var allTemplate = template + wstemplate + templateend;
        var allWorksheet = body + tabletemplate + bodyend;
        var allOfIt = allTemplate + allWorksheet;

        var ctx = {};
        for (var j = 0; j < tables.length; ++j) {
            ctx['worksheet' + j] = name[j];
        }

        for (var k = 0; k < tables.length; ++k) {
            var exceltable;
            if (!tables[k].nodeType) exceltable = document.getElementById(tables[k]);
            ctx['table' + k] = exceltable.innerHTML;
        }

        //document.getElementById("dlink").href = uri + base64(format(template, ctx));
        //document.getElementById("dlink").download = filename;
        //document.getElementById("dlink").click();

        window.location.href = uri + base64(format(allOfIt, ctx));

    }
})();

And the HTML

<html>
    <head>
        <title>JS to Excel</title>

    </head>
    <body>
        <table id="1">
            <tr><td>Hi</td></tr>
            <tr><td>Hey</td></tr>
            <tr><td>Hello</td></tr>
        </table>
        <table id="2">
            <tr><td>Night</td></tr>
            <tr><td>Evening</td></tr>
            <tr><td>Nite</td></tr>
        </table>

        <a id="dlink"  style="display:none;"></a>
        <input type="button" onclick="tablesToExcel(['1', '2'], ['first', 'second'], 'myfile.xls')" value="Export to Excel">
        <script src="~/Views/JS/JSExcel.js" type="text/javascript"></script>
    </body>
</html>

NOTE: this doesn't work on IE ('data too small' error) and on Firefox both tables are put on the same sheet.

Credit also to this thread - HTML Table to Excel Javascript

Solution 2:

//function 1

     $scope.exportXlsSheets = function (datasets) {

            var xlsString = '<?xml version="1.0"?>\
            <ss:Workbook xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet">';        
            for(var key in dict){
                var arr_of_entities=  dict[key].arr;
                xlsString += $scope.getSheet(arr_of_entities);
            }
            xlsString += '</ss:Workbook>';
            var a = document.createElement('a');
            a.href = 'data:application/vnd.ms-excel;base64,' + $scope.base64(xlsString);
            a.target = '_blank';
            a.download = 'test1.xls';

            document.body.appendChild(a);
            a.click();
        }
        $scope.base64 = function (s) {
            return window.btoa(unescape(encodeURIComponent(s)))
        }

//function 2

  $scope.getSheet = function (sheetName, entities) {

        var res = '<ss:Worksheet ss:Name="'+sheetName+"></ss:Worksheet>\
                   <ss:Table>';

             var row = '<ss:Row>';
            for ( i = 0; i < entities.length; i++) {
              var entity = entities[i];


                   row += '<ss:Cell>\
                            <ss:Data ss:Type="String">'+entity.value +'</ss:Data>\
                        </ss:Cell>';
            }
            row += '</ss:Row>';
           res += row;

        return res;
    }