I am using dataTables export buttons. But while using it I get that format of output ( http://imgur.com/a/bXxyQ ) .

But my expected output should be like this ( http://imgur.com/a/07uW3 ).

So, the expected output should be merged data and without border/ grid for a few row.

Is there any documentation that I can search to explore that feature?

this is my code

                  customize: function(xlsx) {
                            var sheet = xlsx.xl.worksheets['sheet1.xml'];
                            var numrows = 3;
                            var clR = $('row', sheet);

                            //update Row
                            clR.each(function () {
                                var attr = $(this).attr('r');
                                var ind = parseInt(attr);
                                ind = ind + numrows;
                                $(this).attr("r",ind);
                            });

                            // Create row before data
                            $('row c ', sheet).each(function () {
                                var attr = $(this).attr('r');
                                var pre = attr.substring(0, 1);
                                var ind = parseInt(attr.substring(1, attr.length));
                                ind = ind + numrows;
                                $(this).attr("r", pre + ind);
                            });

                            function Addrow(index,data) {
                                msg='<row r="'+index+'">'
                                for(i=0;i<data.length;i++){
                                    var key=data[i].key;
                                    var value=data[i].value;
                                    msg += '<c t="inlineStr" r="' + key + index + '">';
                                    msg += '<is>';
                                    msg +=  '<t>'+value+'</t>';
                                    msg+=  '</is>';
                                    msg+='</c>';
                                }
                                msg += '</row>';
                                return msg;
                            }


                            //insert
                            var r1 = Addrow(1, [{ key: 'A', value: $('#report_title').text() }]);
                            var r2 = Addrow(2, [{ key: 'A', value: 'Company Name: '+$('#company_name').val() }]);
                            //var r3 = Addrow(3, [{ key: 'A', value: 'TEST' }, { key: 'B', value: 'TEST' }]);

                            sheet.childNodes[0].childNodes[1].innerHTML = r1 + r2 + sheet.childNodes[0].childNodes[1].innerHTML;

                            // set the background color of the entire row
                            // https://datatables.net/reference/button/excelHtml5
                            //$('row:first c', sheet).attr('s', '7');
                            //$('row:nth-child(4) c', sheet).attr('s', '8');
                            $('row:nth-child(3) c', sheet).attr('s', '7');
                            $('row:first', sheet).attr( 's', '2' );
                            //$('row c[r*="1"]', sheet).attr( 's', '2' );
                            $('row[r="2"]', sheet).attr( 's', '2' );
                            //$('row c[r*="2"]', sheet).attr( 's', '2' );
                            //$('row:nth-child(4) c', sheet).attr('s', '2');
                        },
                        title: $('#report_title').text(),
                    },