Export HTML to excel

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I try to export html table to excel using javascript. The I got this pop up before open the excel file:
if you try open test.xls, is in different format than specified by the extension file

What I have tried:

This is my code:

var tableToExcel = (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><x:ExcelWorksheet> ' +
            '<x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets> ' +
            '</x:ExcelWorkbook></xml><![endif]--><meta http-equiv="content-type" content="text/plain; charset=UTF-8"/></head> ' +
            '<body><table>{table}</table></body></html>'
            , base64 = function (s) { return window.btoa(unescape(encodeURIComponent(s))) }
      , format = function (s, c) { return s.replace(/{(\w+)}/g, function (m, p) { return c[p]; }) }
    return function (table, name, filename) {
        if (!table.nodeType) table = document.getElementById(table)
        var ctx = { worksheet: name || 'Worksheet', table: table.innerHTML }      
        var a = document.createElement('a');
        a.href = uri + base64(format(template, ctx));
        a.download = filename + '.xls';
        a.click();
    }
})()

Posted 6-Sep-17 23:04pm

Andy07

Updated 6-Sep-17 23:09pm

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Graeme_Grant · Answer 1 · 2017-09-06T23:09:00

Solution 1

Here: How to Export GridView To Word/Excel/PDF/CSV in ASP.Net | The ASP.NET Forums[^]

Posted 6-Sep-17 23:09pm

Graeme_Grant

Comments

Andy07 7-Sep-17 23:33pm

I use html table, what is How to Export GridView To Word/Excel/PDF/CSV in ASP.Net | The ASP.NET Forums[^] can solve that problem too?

Graeme_Grant 7-Sep-17 23:38pm

GridView generates a html table. So it will take very little to adapt to your needs. It is called programming.