diff --git a/ClosedXML_Sandbox/PerformanceRunner.cs b/ClosedXML_Sandbox/PerformanceRunner.cs
index 06c84e8..2d4f570 100644
--- a/ClosedXML_Sandbox/PerformanceRunner.cs
+++ b/ClosedXML_Sandbox/PerformanceRunner.cs
@@ -47,16 +47,7 @@
                 var ws = wb.Worksheets.First();
                 var cell = ws.FirstCellUsed();
                 Console.WriteLine(cell.Value);
-                wb.Protect(false, true, "AAA");
-                wb.Save();
             }
-
-            //using (var wb = new XLWorkbook("test.xlsx"))
-            //{
-            //    wb.Worksheets.Add("Sheet2");
-            //    wb.Protect("BBB");
-            //    wb.Save();
-            //}
         }
 
         private static void CreateMergedCell(IXLWorksheet worksheet)