$.ajax({
                url:'uploadExcel',
                data: new FormData($("#uploadForm")[0]),
                headers: {
                    'X-CSRF-TOKEN' : $('meta[name="_token"]').attr('content')
                },
                // dataType:'json',
                async: true,
                type:'post',
                cache: false,
                processData: false,
                contentType: false,
                success: function(){
                    //chunk data from CSV
                },
                error: function(data){
                    var errors = data.responseJSON;
                    console.log(errors);
                },
                complete:function(completeData){
                    console.log(completeData);
                }
            });