Export to Excel Jqgrid data

Question

I am trying to export my JQgrid data into excel by insert a button. But it is showing

No such method: exportToExcel

I am working in asp.net mvc.

$("#export").on("click", function(){
                $("#grid").jqGrid("exportToExcel",{
                    includeLabels : true,
                    includeGroupHeader : true,
                    includeFooter: true,
                    fileName : "jqGridExport.xlsx",
                    maxlength : 40
                })

            })
        });