# File lib/spreadsheet/excel/writer/worksheet.rb, line 18
  def initialize workbook, worksheet
    @workbook = workbook
    @worksheet = worksheet
    @io = StringIO.new ''
    @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,
    }
  end