google sheets email script

function sendEmail() {
  try {
    var ss = SpreadsheetApp.getActive();
    var ssID = ss.getId();
    var date = Utilities.formatDate(new Date(), "GMT+5", "dd/MM/yyyy")
    var subject = "Subject of Email : " + date;
    var message = "Message in email body"
    var sheet = DriveApp.getFileById(ssID);
    var sentbyName = "Name shown for email sentby";
    var email = Session.getEffectiveUser();
    
    // Get Editor and Owner emails for report.
    var emails = sheet.getOwner().getEmail();
    var editors = sheet.getEditors();
    for (var i=0; i < editors.length; i++)
    {
      emails += ', ' + editors[i].getEmail();
    }
    Logger.log('Emails: ' + emails);
    
    var url = "https://docs.google.com/feeds/download/spreadsheets/Export?key=" + ssID + "&exportFormat=xlsx";
    var params = {
      method      : "get",
      headers     : {"Authorization": "Bearer " + ScriptApp.getOAuthToken()},
      muteHttpExceptions: true
    };
    
    var blob = UrlFetchApp.fetch(url, params).getBlob();
    blob.setName(ss.getName() + ".xlsx");
    
    MailApp.sendEmail(emails, subject, message, {
      attachments: [sheet.getAs(MimeType.PDF), blob],
      name: sentbyName
    });
    
  } catch (ex) {
    Logger.log(ex.toString());
  }
}