diff --git a/ClosedXML/ClosedXML/..svnbridge/.svnbridge b/ClosedXML/ClosedXML/..svnbridge/.svnbridge
index 42e94b8..5204a60 100644
--- a/ClosedXML/ClosedXML/..svnbridge/.svnbridge
+++ b/ClosedXML/ClosedXML/..svnbridge/.svnbridge
@@ -2,4 +2,8 @@
 </Value></Property><Property><Name>bugtraq:number</Name><Value>true</Value></Property><Property><Name>svn:ignore</Name><Value>*.suo
 TestResults
 *.user
-</Value></Property></Properties></ItemProperties>
\ No newline at end of file
+</Value></Property><Property><Name>svn:ignore</Name><Value>*.suo
+TestResults
+*.user
+ClosedXML.6.0.ReSharper
+</Value></Property><Property><Name>bugtraq:number</Name><Value>true</Value></Property></Properties></ItemProperties>
\ No newline at end of file
diff --git a/ClosedXML/ClosedXML/ClosedXML/Excel/XLWorkbook_Save.cs b/ClosedXML/ClosedXML/ClosedXML/Excel/XLWorkbook_Save.cs
index db40014..32e46a4 100644
--- a/ClosedXML/ClosedXML/ClosedXML/Excel/XLWorkbook_Save.cs
+++ b/ClosedXML/ClosedXML/ClosedXML/Excel/XLWorkbook_Save.cs
@@ -356,7 +356,7 @@
                 workbook.Sheets = new Sheets();
 
             var worksheets = WorksheetsInternal;
-            workbook.Sheets.Elements<Sheet>().Where(s => worksheets.Deleted.Contains(s.Id)).ForEach(s => s.Remove());
+            workbook.Sheets.Elements<Sheet>().Where(s => worksheets.Deleted.Contains(s.Id)).ToList().ForEach(s => s.Remove());
 
             foreach (Sheet sheet in workbook.Sheets.Elements<Sheet>())
             {
diff --git a/ClosedXML/ClosedXML/ClosedXML_Examples/ClosedXML_Examples.csproj b/ClosedXML/ClosedXML/ClosedXML_Examples/ClosedXML_Examples.csproj
index 225874c..89e925f 100644
--- a/ClosedXML/ClosedXML/ClosedXML_Examples/ClosedXML_Examples.csproj
+++ b/ClosedXML/ClosedXML/ClosedXML_Examples/ClosedXML_Examples.csproj
@@ -123,6 +123,7 @@
     <Compile Include="Columns\ColumnSettings.cs" />
     <Compile Include="Columns\ColumnCells.cs" />
     <Compile Include="Columns\DeletingColumns.cs" />
+    <Compile Include="Delete\DeleteFewWorksheets.cs" />
     <Compile Include="IXLExample.cs" />
     <Compile Include="ModifyFiles.cs" />
     <Compile Include="Creating\CreateFiles.cs" />
diff --git a/ClosedXML/ClosedXML/ClosedXML_Examples/Delete/DeleteFewWorksheets.cs b/ClosedXML/ClosedXML/ClosedXML_Examples/Delete/DeleteFewWorksheets.cs
new file mode 100644
index 0000000..f585a17
--- /dev/null
+++ b/ClosedXML/ClosedXML/ClosedXML_Examples/Delete/DeleteFewWorksheets.cs
@@ -0,0 +1,41 @@
+using System.IO;
+using ClosedXML.Excel;
+
+namespace ClosedXML_Examples.Delete
+{
+    public class DeleteFewWorksheets:IXLExample
+    {
+        public void Create(string filePath)
+        {
+            string tempFile = ExampleHelper.GetTempFilePath();
+            try
+            {
+                //Note: Prepare
+                {
+                    var workbook = new XLWorkbook();
+                    workbook.Worksheets.Add("1");
+                    workbook.Worksheets.Add("2");
+                    workbook.Worksheets.Add("3");
+                    workbook.Worksheets.Add("4");
+                    workbook.SaveAs(tempFile);
+                }
+
+                //Note: Delate few worksheet
+                {
+                    var workbook = new XLWorkbook(tempFile);
+                    workbook.Worksheets.Delete("1");
+                    workbook.Worksheets.Delete("2");
+                    workbook.SaveAs(filePath);
+                }
+            }
+            finally
+            {
+                if (File.Exists(tempFile))
+                {
+                    File.Delete(tempFile);
+                }
+            }
+            
+        }
+    }
+}
\ No newline at end of file
diff --git a/ClosedXML/ClosedXML/ClosedXML_Tests/ClosedXML_Tests.csproj b/ClosedXML/ClosedXML/ClosedXML_Tests/ClosedXML_Tests.csproj
index eefeed8..16fb664 100644
--- a/ClosedXML/ClosedXML/ClosedXML_Tests/ClosedXML_Tests.csproj
+++ b/ClosedXML/ClosedXML/ClosedXML_Tests/ClosedXML_Tests.csproj
@@ -156,6 +156,9 @@
     <EmbeddedResource Include="Resource\Examples\Styles\UsingColors.xlsx" />
     <EmbeddedResource Include="Resource\Misc\CopyRowContents.xlsx" />
   </ItemGroup>
+  <ItemGroup>
+    <EmbeddedResource Include="Resource\Examples\Delete\DeleteFewWorksheets.xlsx" />
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/ClosedXML/ClosedXML/ClosedXML_Tests/Examples/DeleteTests.cs b/ClosedXML/ClosedXML/ClosedXML_Tests/Examples/DeleteTests.cs
index c0be265..55e3424 100644
--- a/ClosedXML/ClosedXML/ClosedXML_Tests/Examples/DeleteTests.cs
+++ b/ClosedXML/ClosedXML/ClosedXML_Tests/Examples/DeleteTests.cs
@@ -12,5 +12,11 @@
             TestHelper.RunTestExample<DeleteRows>(@"Delete\RemoveRows.xlsx");
         }
 
+        [TestMethod]
+        public void DeleteFewWorksheets()
+        {
+            TestHelper.RunTestExample<DeleteFewWorksheets>(@"Delete\DeleteFewWorksheets.xlsx");
+        }
+
     }
 }
\ No newline at end of file
diff --git a/ClosedXML/ClosedXML/ClosedXML_Tests/Resource/Examples/Delete/..svnbridge/DeleteFewWorksheets.xlsx b/ClosedXML/ClosedXML/ClosedXML_Tests/Resource/Examples/Delete/..svnbridge/DeleteFewWorksheets.xlsx
new file mode 100644
index 0000000..16ee104
--- /dev/null
+++ b/ClosedXML/ClosedXML/ClosedXML_Tests/Resource/Examples/Delete/..svnbridge/DeleteFewWorksheets.xlsx
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?><ItemProperties xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><Properties><Property><Name>svn:ignore</Name><Value>*.suo
+TestResults
+*.user
+ClosedXML.6.0.ReSharper
+</Value></Property><Property><Name>bugtraq:number</Name><Value>true</Value></Property><Property><Name>svn:mime-type</Name><Value>application/octet-stream</Value></Property></Properties></ItemProperties>
\ No newline at end of file
diff --git a/ClosedXML/ClosedXML/ClosedXML_Tests/Resource/Examples/Delete/DeleteFewWorksheets.xlsx b/ClosedXML/ClosedXML/ClosedXML_Tests/Resource/Examples/Delete/DeleteFewWorksheets.xlsx
new file mode 100644
index 0000000..1c67f2e
--- /dev/null
+++ b/ClosedXML/ClosedXML/ClosedXML_Tests/Resource/Examples/Delete/DeleteFewWorksheets.xlsx
Binary files differ