# File lib/spreadsheet/excel/writer/workbook.rb, line 21
  def initialize *args
    super
    @biff_version = 0x0600
    @bof = 0x0809
    @build_id = 3515
    @build_year = 1996
    @bof_types = {
      :globals      => 0x0005,
      :visual_basic => 0x0006,
      :worksheet    => 0x0010,
      :chart        => 0x0020,
      :macro_sheet  => 0x0040,
      :workspace    => 0x0100,
    }
    @worksheets = {}
    @sst = {}
    @recordsize_limit = 8224
    @fonts = {}
    @formats = {}
    @number_formats = {}
  end