# File lib/spreadsheet/workbook.rb, line 108
   def store_window1
      record    = 0x003D
      length    = 0x0012

      xWn       = 0x0000
      yWn       = 0x0000
      dxWn      = 0x25BC
      dyWn      = 0x1572

      grbit     = 0x0038
      ctabsel   = 0x0001
      wTabRatio = 0x0258

      itabFirst = @first_sheet
      itabCur   = @active_sheet

      header = [record,length].pack("vv")
      fields = [xWn,yWn,dxWn,dyWn,grbit,itabCur,itabFirst,ctabsel,wTabRatio]
      data   = fields.pack("vvvvvvvvv")

      append(header,data)
   end