from sheet to excel

let FOLDER_URL = '';

function driveIt(){
  const ss = SpreadsheetApp.getActive();
  const sh = ss.getActiveSheet();
  const blobushka = getBlob(ss, sh);

  const file = DriveApp
    .createFile(blobushka)
    .setName(`файл от ${Utilities.formatDate(new Date(), Session.getScriptTimeZone(), 'YY-MM-dd')}`);

  FOLDER_URL ? file.moveTo(DriveApp.getFolderById(getIdFromUrl(FOLDER_URL))) : ''

  Browser.msgBox(`А вот и ваш файл: ${file.getUrl()}`);
}

function getIdFromUrl(url) { return url.match(/[-\w]{25,}/); }

function getBlob(ss, sh) {
  var url = "https://docs.google.com/spreadsheets/export?id=" + ss.getId() + "&gid=" + sh.getSheetId() + "&exportFormat=xlsx"
  var token         = ScriptApp.getOAuthToken();
  var response      = UrlFetchApp.fetch(url, {
    headers: {
      'Authorization': 'Bearer ' +  token
    }
  });
  return response.getBlob();
}

function onOpen(e){
  SpreadsheetApp.getUi()
  .createMenu("С к р и п т ы")
  .addItem("превратить выбранный лист в XLSX", "driveIt")
  .addToUi();
}