lib/spreadsheet/excel/row.rb in spreadsheet-0.6.1.5 vs lib/spreadsheet/excel/row.rb in spreadsheet-0.6.1.6

@@ -53,10 +53,10 @@
   end
   def enriched_data idx, data # :nodoc:
     res = nil
     if link = @worksheet.links[[@idx, idx]]
       res = link
-    elsif fmt = format(idx)
+    elsif data.is_a?(Numeric) && fmt = format(idx)
       res = if fmt.datetime? || fmt.time?
               _datetime data
             elsif fmt.date?
               _date data
             end