# File lib/spreadsheet/excel/writer/workbook.rb, line 632 def write_xfs workbook, writer # The default cell format is always present in an Excel file, described by # the XF record with the fixed index 15 (0-based). By default, it uses the # worksheet/workbook default cell style, described by the very first XF # record (index 0). @formats[workbook].each do |fmt| fmt.write_xf writer end end