# File lib/spreadsheet/worksheet.rb, line 74
   def store_dimensions
      record   = 0x0000
      length   = 0x000A
      reserved = 0x0000

      header = [record, length].pack("vv")
      fields = [@dim_rowmin, @dim_rowmax, @dim_colmin, @dim_colmax, reserved]
      data   = fields.pack("vvvvv")

      prepend(header, data)
   end