diff --git a/ClosedXML/ClosedXML/ClosedXML/Excel/XLWorkbook_Save.cs b/ClosedXML/ClosedXML/ClosedXML/Excel/XLWorkbook_Save.cs
index 9ae3941..760771d 100644
--- a/ClosedXML/ClosedXML/ClosedXML/Excel/XLWorkbook_Save.cs
+++ b/ClosedXML/ClosedXML/ClosedXML/Excel/XLWorkbook_Save.cs
@@ -1397,6 +1397,7 @@
                     if (NumberFormatsAreEqual(nf, numberFormatInfo.NumberFormat))
                     {
                         foundOne = true;
+                        numberingFormatId = (Int32)nf.NumberFormatId.Value;
                         break;
                     }
                     numberingFormatId++;
diff --git a/ClosedXML/ClosedXML/ClosedXML_Examples/Styles/UsingColors.cs b/ClosedXML/ClosedXML/ClosedXML_Examples/Styles/UsingColors.cs
index 74e4cb3..34705ec 100644
--- a/ClosedXML/ClosedXML/ClosedXML_Examples/Styles/UsingColors.cs
+++ b/ClosedXML/ClosedXML/ClosedXML_Examples/Styles/UsingColors.cs
@@ -15,25 +15,75 @@
             var wb = new XLWorkbook();
             var ws = wb.Worksheets.Add("Using Colors");
 
-            // From Known color
-            ws.Cell(1, 1).Style.Fill.BackgroundColor = XLColor.Red;
-            ws.Cell(1, 2).Value = "XLColor.Red";
+            Int32 ro = 0;
 
-            // From Color not known
-            ws.Cell(2, 1).Style.Fill.BackgroundColor = XLColor.Byzantine;
-            ws.Cell(2, 2).Value = "XLColor.Byzantine";
+            // From Known color
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.Red;
+            ws.Cell(ro, 2).Value = "XLColor.Red";
+
+            // From Color not so known
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.Byzantine;
+            ws.Cell(ro, 2).Value = "XLColor.Byzantine";
+
+            ro++;
+
+            // FromArgb(Int32 argb) using Hex notation
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.FromArgb(0xFF00FF);
+            ws.Cell(ro, 2).Value = "XLColor.FromArgb(0xFF00FF)";
+
+            // FromArgb(Int32 argb) using an integer (you need to convert the hex value to an int)
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.FromArgb(16711935);
+            ws.Cell(ro, 2).Value = "XLColor.FromArgb(16711935)";
+
+            // FromArgb(Int32 r, Int32 g, Int32 b)
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.FromArgb(255, 0, 255);
+            ws.Cell(ro, 2).Value = "XLColor.FromArgb(255, 0, 255)";
+
+            // FromArgb(Int32 a, Int32 r, Int32 g, Int32 b)
+            // Note: Excel ignores the alpha value
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.FromArgb(0, 255, 0, 255);
+            ws.Cell(ro, 2).Value = "XLColor.FromArgb(0, 255, 0, 255)";
+
+            ro++;
+
+            // FromColor(Color color)
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.FromColor(Color.Red);
+            ws.Cell(ro, 2).Value = "XLColor.FromColor(Color.Red)";
+
+            ro++;
+
+            // FromHtml(String htmlColor)
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.FromHtml("#FF996515");
+            ws.Cell(ro, 2).Value = "XLColor.FromHtml(\"#FF996515\")";
+
+            ro++;
+
+            // FromIndex(Int32 indexedColor)
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.FromIndex(25);
+            ws.Cell(ro, 2).Value = "XLColor.FromIndex(25)";
+
+            ro++;
+
+            // FromKnownColor(KnownColor knownColor)
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.FromKnownColor(KnownColor.Plum);
+            ws.Cell(ro, 2).Value = "XLColor.FromKnownColor(KnownColor.Plum)";
+
+            ro++;
+
+            // FromName(String colorName)
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.FromName("PowderBlue");
+            ws.Cell(ro, 2).Value = "XLColor.FromName(\"PowderBlue\")";
+
+            ro++;
 
             // From Theme color
-            ws.Cell(3, 1).Style.Fill.BackgroundColor = XLColor.FromTheme(XLThemeColor.Accent1);
-            ws.Cell(3, 2).Value = "XLColor.FromTheme(XLThemeColor.Accent1)";
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.FromTheme(XLThemeColor.Accent1);
+            ws.Cell(ro, 2).Value = "XLColor.FromTheme(XLThemeColor.Accent1)";
 
             // From Theme color with tint
-            ws.Cell(4, 1).Style.Fill.BackgroundColor = XLColor.FromTheme(XLThemeColor.Accent2, 0.5);
-            ws.Cell(4, 2).Value = "XLColor.FromTheme(XLThemeColor.Accent2, 0.5)";
+            ws.Cell(++ro, 1).Style.Fill.BackgroundColor = XLColor.FromTheme(XLThemeColor.Accent1, 0.5);
+            ws.Cell(ro, 2).Value = "XLColor.FromTheme(XLThemeColor.Accent1, 0.5)";
 
-            // From indexed color (legacy)
-            ws.Cell(5, 1).Style.Fill.BackgroundColor = XLColor.FromIndex(25);
-            ws.Cell(5, 2).Value = "XLColor.FromIndex(25)";
 
             ws.Columns().AdjustToContents();
 
diff --git a/ClosedXML/ClosedXML/ClosedXML_Sandbox/ClosedXML_Sandbox.csproj b/ClosedXML/ClosedXML/ClosedXML_Sandbox/ClosedXML_Sandbox.csproj
index 858a71f..8b1cfcd 100644
--- a/ClosedXML/ClosedXML/ClosedXML_Sandbox/ClosedXML_Sandbox.csproj
+++ b/ClosedXML/ClosedXML/ClosedXML_Sandbox/ClosedXML_Sandbox.csproj
@@ -62,10 +62,6 @@
       <Project>{BD5E6BFE-E837-4A35-BCA9-39667D873A20}</Project>
       <Name>ClosedXML</Name>
     </ProjectReference>
-    <ProjectReference Include="..\ClosedXML_Examples\ClosedXML_Examples.csproj">
-      <Project>{03A518D0-1CB7-488E-861C-C4E782B27A46}</Project>
-      <Name>ClosedXML_Examples</Name>
-    </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
diff --git a/ClosedXML/ClosedXML/ClosedXML_Sandbox/Program.cs b/ClosedXML/ClosedXML/ClosedXML_Sandbox/Program.cs
index 8679449..9249434 100644
--- a/ClosedXML/ClosedXML/ClosedXML_Sandbox/Program.cs
+++ b/ClosedXML/ClosedXML/ClosedXML_Sandbox/Program.cs
@@ -12,12 +12,14 @@
 {
     class Program
     {
-        static void xMain(string[] args)
+        static void Main(string[] args)
         {
-            var l = new List<String>();
+            var wb = new XLWorkbook(@"C:\Excel Files\ForTesting\Blank_Modified.xlsx");
+            wb.SaveAs(@"C:\Excel Files\ForTesting\Blank_Modified2.xlsx");
+            //var l = new List<String>();
 
-            for (Int32 i = 1; i <= 10; i++)
-                ClosedXML_Examples.Program.ExecuteMain();
+            //for (Int32 i = 1; i <= 10; i++)
+            //    ClosedXML_Examples.Program.ExecuteMain();
         }
         static void Main_5961(string[] args)
         {
@@ -44,16 +46,16 @@
             wb.Save();
         }
 
-        static void Main(string[] args)
+        static void xMain(string[] args)
         {
             FillStyles();
             List<Double> runningSave = new List<Double>();
             List<Double> runningLoad = new List<Double>();
             List<Double> runningSavedBack = new List<Double>();
+            var wb = new XLWorkbook();
             foreach (Int32 r in Enumerable.Range(1, 5))
             {
                 var startTotal = DateTime.Now;
-                var wb = new XLWorkbook();
                 foreach (var i in Enumerable.Range(1, 1))
                 {
                     var ws = wb.Worksheets.Add("Sheet" + i);
@@ -74,7 +76,7 @@
                 //}
                 //var end3 = DateTime.Now;
                 //Console.WriteLine("Bolded all cells in {0} secs.", (end3 - start3).TotalSeconds);
-
+                
                 var start = DateTime.Now;
                 wb.SaveAs(@"C:\Excel Files\ForTesting\Benchmark.xlsx");
                 var end = DateTime.Now;