class CmAdmin::Models::Export

def generate_excel(klass_name, columns = [], helpers)
  klass = klass_name.constantize
  model = CmAdmin::Model.find_by({name: klass_name})
  records = get_records(klass, model, columns, helpers)
  file_path = "#{Rails.root}/tmp/#{klass}_data_#{DateTime.now.strftime("%Y-%m-%d_%H-%M-%S")}.xlsx"
  create_workbook(records, columns, file_path)
  return file_path
end