<div id="spreadsheet"></div>
<script type="text/javascript" charset="utf-8">

    $("#spreadsheet").kendoSpreadsheet();

    var spreadsheet = $("#spreadsheet").data("kendoSpreadsheet");

    var sheet = spreadsheet.activeSheet();

    var range = sheet.range("A1:B1");

    if (range.isFilterable()) {
        range.filter(true);
    }
</script>