wb = xlsx_package.workbook
wb.add_worksheet(name: '用户运营统计') do |sheet|
  sheet.add_row %w(单位名称 省份 注册老师数量 注册学生数量 活跃用户 学习关卡数 完成关卡数 评测次数)

  @schools.each do |school|
    data = [
      school.name,
      school.province,
      school.display_extra_data(:reg_teacher_count),
      school.display_extra_data(:reg_student_count),
      school.display_extra_data(:user_active_count),
      school.display_extra_data(:study_challenge_count),
      school.display_extra_data(:finish_challenge_count),
      school.display_extra_data(:evaluate_count),
    ]
    sheet.add_row(data)
  end
end