Excel sheet with no borders! ! !

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Javascript

jQuery

I tried the below code working fine in Chrome but the problem is the downloaded excel sheet not having cellborders

var currentID = ($(this).attr('id'));
                //getting values of current time for generating the file name
                var dt = new Date();
                var day = dt.getDate();
                var month = dt.getMonth() + 1;
                var year = dt.getFullYear();
                var hour = dt.getHours();
                var mins = dt.getMinutes();
                var postfix = day + "." + month + "." + year + "_" + hour + "." + mins;
                //creating a temporary HTML link element (they support setting file names)
                var a = document.createElement('a');
                //getting data from our div that contains the HTML table
                var data_type = 'data:application/vnd.ms-excel';
                var table_div = null;
                if (currentID == "aRenewal_Queue") {
                    table_div = document.getElementById('divRenewal_Queue');
                    a.download = 'RenewalQuotes' + postfix + '.xls';
                }

                else if (currentID == "aRenewal_Bind") {
                    table_div = document.getElementById('divRenewal_Bind');
                    a.download = 'RenewalBinds' + postfix + '.xls';
                }
                else
                {
                    table_div = document.getElementById('divLobWise_Queue');
                    a.download = 'LOBWISELEADS' + postfix + '.xls';
                }
                   

                var table_html = table_div.outerHTML.replace(/ /g, '%20');
                a.href = data_type + ', ' + table_html;
                //setting the file name
                //a.download = 'RenewalQuotes' + postfix + '.xls';
                //triggering the function
                a.click();
                //just in case, prevent default behaviour
                e.preventDefault();

Please help to get borders in Excel

Thanks in advance.
KArtik

What I have tried:

var currentID = ($(this).attr('id'));
                //getting values of current time for generating the file name
                var dt = new Date();
                var day = dt.getDate();
                var month = dt.getMonth() + 1;
                var year = dt.getFullYear();
                var hour = dt.getHours();
                var mins = dt.getMinutes();
                var postfix = day + "." + month + "." + year + "_" + hour + "." + mins;
                //creating a temporary HTML link element (they support setting file names)
                var a = document.createElement('a');
                //getting data from our div that contains the HTML table
                var data_type = 'data:application/vnd.ms-excel';
                var table_div = null;
                if (currentID == "aRenewal_Queue") {
                    table_div = document.getElementById('divRenewal_Queue');
                    a.download = 'RenewalQuotes' + postfix + '.xls';
                }

                else if (currentID == "aRenewal_Bind") {
                    table_div = document.getElementById('divRenewal_Bind');
                    a.download = 'RenewalBinds' + postfix + '.xls';
                }
                else
                {
                    table_div = document.getElementById('divLobWise_Queue');
                    a.download = 'LOBWISELEADS' + postfix + '.xls';
                }
                   

                var table_html = table_div.outerHTML.replace(/ /g, '%20');
                a.href = data_type + ', ' + table_html;
                //setting the file name
                //a.download = 'RenewalQuotes' + postfix + '.xls';
                //triggering the function
                a.click();
                //just in case, prevent default behaviour
                e.preventDefault();