diff --git a/ClosedXML_Sandbox/ClosedXML_Sandbox.csproj b/ClosedXML_Sandbox/ClosedXML_Sandbox.csproj
index 81bf383..3581c95 100644
--- a/ClosedXML_Sandbox/ClosedXML_Sandbox.csproj
+++ b/ClosedXML_Sandbox/ClosedXML_Sandbox.csproj
@@ -63,9 +63,6 @@
     </None>
     <None Include="app.config" />
     <None Include="packages.config" />
-    <None Include="tmp.xlsx">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </None>
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\ClosedXML\ClosedXML.csproj">
diff --git a/ClosedXML_Sandbox/Program.cs b/ClosedXML_Sandbox/Program.cs
index ed0202a..0cb47d1 100644
--- a/ClosedXML_Sandbox/Program.cs
+++ b/ClosedXML_Sandbox/Program.cs
@@ -1,6 +1,4 @@
-using ClosedXML.Excel;
-using System.Linq;
-using System;
+using System;
 
 namespace ClosedXML_Sandbox
 {
@@ -8,26 +6,10 @@
     {
         private static void Main(string[] args)
         {
-            var path = "tmp.xlsx";
-            using (var workbook = new XLWorkbook(path))
-            {
-                var ws1 = workbook.Worksheets.Last();
-
-                int rowCount = 20; //example
-                                   //first row headers
-                for (int i = 1; i < rowCount; i++)
-                {
-                    var row = ws1.Row(i);
-                    var values = row.Cells().Select(c => c.Value).ToArray();
-                    IXLCell cell = row.Cell("E");     //.Cell(5);
-                    bool isEmpty = cell.IsEmpty();      //always empty on this column, but in original have 6 lines
-                    var val = cell.Value;   //cell.
-                                            //vals += val + Environment.NewLine;
-                }
-            }
+            PerformanceRunner.TimeAction(PerformanceRunner.RunInsertTable);
 
             Console.WriteLine("Press any key to continue");
             Console.ReadKey();
         }
     }
-}
+}
\ No newline at end of file