文字化け.html

        function download() {
            console.log("start downloading");
            const contentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
            const wb = XLSX.utils.book_new();
            const ws = XLSX.utils.aoa_to_sheet([
                ["みずほ銀行", "0001"],
                ["三菱UFJ銀行", "0005"],
                ["三井住友銀行", "0009"],
                ["りそな銀行", "0010"],
                ["埼玉りそな銀行", "0017"],
            ]);
            XLSX.utils.book_append_sheet(wb, ws, "Bank Codes");
            const xlsx = XLSX.write(wb, { type: "array" });
            const a = document.createElement("a");
            const url = URL.createObjectURL(new Blob([xlsx], {
                type: contentType
            }));
            a.href = url;
            a.download = "bankcode.xlsx";
            a.click();
            URL.revokeObjectURL(url);
        }