问ExcelJS CSV转换不符合公式

EN

    var workbook = new Excel.Workbook();

    workbook.xlsx.load(results.rows[0].map) //reading from PostGres bytea field
        .then(function () {
            function getMap() {
                return new Promise(resolve => {
                    workbook.csv
                    .writeFile(__dirname+ '/./uploads/'+results.rows[0].name+'.csv')
                    .then(function () {
                        resolve('done');
                    })

                })
            }
        }