SOURCE

var filename = "write.xlsx";
var data = [[1,2,3],[true, false, null, "sheetjs"],["foo","bar",new Date("2014-02-19T14:30Z"), "0.3"], ["baz", null, "qux"]]
var ws_name = "SheetJS";
 
if(typeof console !== 'undefined') console.log(new Date());
var wb = XLSX.utils.book_new(), ws = XLSX.utils.aoa_to_sheet(data);
 
/* add worksheet to workbook */
XLSX.utils.book_append_sheet(wb, ws, ws_name);

/* write workbook */
if(typeof console !== 'undefined') console.log(new Date());
XLSX.writeFile(wb, filename);
if(typeof console !== 'undefined') console.log(new Date());
console 命令行工具 X clear

                    
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console