module RubyXL::LegacyWorkbook

def initialize(worksheets=[], filepath=nil, creator=nil, modifier=nil, created_at=nil,
               company='', application=APPLICATION,
               appversion=APPVERSION, date1904=0)
  super()
  # Order of sheets in the +worksheets+ array corresponds to the order of pages in Excel UI.
  # SheetId's, rId's, etc. are completely unrelated to ordering.
  @worksheets = worksheets
  add_worksheet if @worksheets.empty?
  @creator             = creator
  @modifier            = modifier
  self.date1904        = date1904 > 0
  @theme                    = RubyXL::Theme.defaults
  @shared_strings_container = RubyXL::SharedStringsTable.new
  @stylesheet               = RubyXL::Stylesheet.default
  @relationship_container   = RubyXL::OOXMLRelationshipsFile.new
  @root                     = RubyXL::WorkbookRoot.default
  @root.workbook            = self
  @root.filepath            = filepath
  @comments                 = []
  self.company         = company
  self.application     = application
  self.appversion      = appversion
  begin
    @created_at       = DateTime.parse(created_at).strftime('%Y-%m-%dT%TZ')
  rescue
    @created_at       = Time.now.strftime('%Y-%m-%dT%TZ')
  end
  @modified_at        = @created_at
end