How to CONVERT json data to excel file with nodejs

I'm trying to get excel file of my data as below. However, my code doesn't work. Does anyone know, why? I don't get any result or any error. It just doesn't do anything. This method is in a controller. So I'm calling this method from postman

import {Workbook} from  "exceljs";
import * as tmp from  "tmp";

    @Get()
    @Header("Content-Type", "text/xlsx")
    async getExcel(@Response() res) {

        let rows = []

        let data = [{name: "shelly", surname: "shelly"}, {name: "shelly1", surname: "shelly1"},]
          
          data(doc => {
            rows.push(Object.values(doc))
          })

          let book = new Workbook();
          let sheet = book.addWorksheet(`sheet1`);
          rows.unshift(Object.keys(data[0]));
          sheet.addRows(rows)

          
          let File = await new Promise((resolve,reject) =>{
            tmp.file({discardDescriptor: true, prefix: `ExcelSheet`, postfix:`.xlsx`, mode: parseInt(`0600`,8)}, async (err, file) =>{
                if(err)
                    throw new BadRequestException(err);
                
                book.xlsx.writeFile(file).then(_ =>{
                    resolve(file)
                }).catch(err => {
                    throw new BadRequestException(err)
                })
            })
          })


          res.download(`${File}`)
    }

Using nodejs with nestjs framework.