wb = xlsx_package.workbook
wb.add_worksheet(name: "Reporte") do |sheet|
    sheet.add_row ["Grupo", @vehicle.group.name]
    sheet.add_row ["Vehiculo", @vehicle.name]
    sheet.add_row ["", ""]
    sheet.add_row ["", ""]
    sheet.add_row ["Fecha", "Estado", 'Ubicación']
    @rows.each do |row|
        sheet.add_row [row[0], row[1], row[2]]
    end
    sheet.add_row ["Tiempo total de motor: ", "#{@engine_time} Horas"]
end