I am creating an excel sheet using exceljs package in nodejs application. I have an array of headers that I've generated like this.

const monthsArray = arrDays.map((str) => (
   { header: str, key: str, width: 10 } // Example { header: "12-15-2021", key: "12-15-2021", width: 10}
));

let headers = [
   { header: "Name", key: "Name", width: 10 },
   { header: "Phone", key: "Phone", width: 13 },
   { header: "CNIC", key: "CNIC", width: 13 },
   { header: "City", key: "City", width: 10 },
   ...monthsArray
];

Now I am running an aggregate which will return me records of users and along with that I will be getting a nested object inside it which will have records of attendance on a particular day soemthing like this createdAt: "2021-12-15T19:56:37.984Z" and present: true. Now the headers I am able to print out correctly in the first row with dates on top of each column and before that the said data like name, phone, city etc. However I need to know how I can show correct attendance records under the correct column? Such that the true must be written under the column 12-15-2021 for a particular user.

Here is how I am generating excel file

generateAndUploadExcel: async function (worksheetName, headers, rows) {
    var workbook = new Excel.Workbook();
    var sheet = workbook.addWorksheet(worksheetName);
  
    sheet.columns = headers;
    sheet.addRows(rows);
    try {
      var bufferFile = await workbook.xlsx.writeBuffer();
      const fileExt = "xlsx";
      const aws = new FileUploadService(
        awsConfig.accessKeyId,
        awsConfig.secretAccessKey,
        awsConfig.bucketName
      );
      const upload = await aws.uploadBuffer(
        "download-center",
        bufferFile,
        fileExt,
        worksheetName
      );
      return upload;
    } catch (err) {
      throw new Error(err);
    }
  }