# File lib/spreadsheet/workbook.rb, line 75
   def store_workbook
      @worksheets.each{ |sheet|
         sheet.close
      }

      store_bof(0x0005)
      store_window1
      store_date_system
      store_all_fonts
      store_all_num_formats
      store_all_xfs
      store_all_styles
      calc_sheet_offsets

      @worksheets.each{ |sheet|
         store_boundsheet(sheet.name, sheet.offset)
      }

      store_eof
      store_ole_file
   end