diff --git a/ENI2/DetailViewControls/OverViewDetailControl.xaml b/ENI2/DetailViewControls/OverViewDetailControl.xaml
index 9922c38e..ec9d46f3 100644
--- a/ENI2/DetailViewControls/OverViewDetailControl.xaml
+++ b/ENI2/DetailViewControls/OverViewDetailControl.xaml
@@ -110,11 +110,20 @@
                 <Label Grid.Column="0" Grid.Row="7" Margin="0,0,10,0" HorizontalContentAlignment="Right" Name="labelCancelled" VerticalContentAlignment="Center" FontWeight="Bold" />
                 <Label Grid.Column="1" Grid.Row="7" Margin="0,0,10,0" HorizontalContentAlignment="Right" Name="labelHIS" VerticalContentAlignment="Center" Content="{x:Static p:Resources.textSendToHIS}" />
                 <ComboBox Grid.Column="2" Grid.Row="7" Margin="2" Name="comboBoxInitialHis" VerticalContentAlignment="Center" SelectedValuePath="Key" DisplayMemberPath="Value" SelectedValue="{Binding Path=InitialHIS}" />
-                <Button Grid.Column="3" Grid.Row="7" Margin="2" Name="buttonExcelImport" Content="{x:Static p:Resources.textExcelImport}" Click="buttonExcelImport_Click">
-                        <!-- hier könnte noch ein nettes Icon hin -->
+                <Button Grid.Column="3" Grid.Row="7" Margin="2" Name="buttonExcelImport" Click="buttonExcelImport_Click">
+                    <StackPanel Orientation="Horizontal">
+                        <TextBlock Text="{x:Static p:Resources.textExcelImport}"></TextBlock>
+                        <Image Source="../Resources/excel.png" Margin="10,0,5,0" Height="16"/>
+                    </StackPanel>
+                </Button>
+                <Button Grid.Column="4" Grid.Row="7" Margin="2" Name="buttonExcelExport" Click="buttonExcelExport_Click">
+                    <StackPanel Orientation="Horizontal">
+                        <TextBlock Text="{x:Static p:Resources.textExcelExport}"></TextBlock>
+                        <Image Source="../Resources/excel.png" Margin="10,0,5,0" Height="16"/>
+                    </StackPanel>
                 </Button>
 
-                <StackPanel Orientation="Horizontal" Grid.Column="3" Grid.Row="7" Visibility="Hidden" Name="stackPanelLock">
+                    <StackPanel Orientation="Horizontal" Grid.Column="5" Grid.Row="7" Visibility="Hidden" Name="stackPanelLock">
                     <Image Source="../Resources/lock.png" Margin="0,0,5,0" Height="24" />
                     <TextBlock Name="textBlockLockUserName" VerticalAlignment="Center" />
                 </StackPanel>
diff --git a/ENI2/DetailViewControls/OverViewDetailControl.xaml.cs b/ENI2/DetailViewControls/OverViewDetailControl.xaml.cs
index 38f60a94..96eb4f6e 100644
--- a/ENI2/DetailViewControls/OverViewDetailControl.xaml.cs
+++ b/ENI2/DetailViewControls/OverViewDetailControl.xaml.cs
@@ -754,6 +754,9 @@ namespace ENI2.DetailViewControls
             this.OnRequestValidate();           
         }
 
+        /// <summary>
+        /// update class fields from named excel sheet
+        /// </summary>
         private void buttonExcelImport_Click(object sender, RoutedEventArgs e)
         {
             SelectImportClassesDialog sicd = new SelectImportClassesDialog();
@@ -789,6 +792,36 @@ namespace ENI2.DetailViewControls
             }
         }
 
+        /// <summary>
+        /// export all classes to excel reference sheet
+        /// </summary>        
+        private void buttonExcelExport_Click(object sender, RoutedEventArgs e)
+        {
+            string filename = string.Format("{0}_{1}_ref.xlsx", this.Core.Shipname, this.Core.DisplayId);
+            SaveFileDialog sfd = new SaveFileDialog()
+            {
+                Filter = "Excel Files|*.xls;*.xlsx",
+                FileName = filename
+            };
+            if(sfd.ShowDialog() ?? false)
+            {
+                Util.UIHelper.SetBusyState();
+
+                ExcelManager em = new ExcelManager();
+                string resultMessage = "";
+
+                try
+                {
+                    em.Export(sfd.FileName, this.Core, this.Messages, out resultMessage);
+                    MessageBox.Show("Exported " + sfd.FileName, "Export successful", MessageBoxButton.OK, MessageBoxImage.Information);
+                }
+                catch(Exception ex)
+                {                    
+                    MessageBox.Show(resultMessage, "Export failed: " + ex.Message, MessageBoxButton.OK, MessageBoxImage.Error);
+                }
+            }
+        }
+
         #endregion
 
         #region mouse wheel
diff --git a/ENI2/ENI2.csproj b/ENI2/ENI2.csproj
index ee8ae89e..b2f080c7 100644
--- a/ENI2/ENI2.csproj
+++ b/ENI2/ENI2.csproj
@@ -37,7 +37,7 @@
     <CreateWebPageOnPublish>true</CreateWebPageOnPublish>
     <WebPage>publish.html</WebPage>
     <ApplicationRevision>0</ApplicationRevision>
-    <ApplicationVersion>6.8.1.0</ApplicationVersion>
+    <ApplicationVersion>6.9.0.0</ApplicationVersion>
     <UseApplicationTrust>false</UseApplicationTrust>
     <CreateDesktopShortcut>true</CreateDesktopShortcut>
     <PublishWizardCompleted>true</PublishWizardCompleted>
@@ -788,6 +788,7 @@
     <Resource Include="Resources\document_down.png" />
     <Resource Include="Resources\undo.png" />
     <Resource Include="Resources\Logo.gif" />
+    <Resource Include="Resources\excel.png" />
     <Content Include="x64\SQLite.Interop.dll">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>
diff --git a/ENI2/Import/ExcelManager.cs b/ENI2/Import/ExcelManager.cs
index 046444fc..e92edb15 100644
--- a/ENI2/Import/ExcelManager.cs
+++ b/ENI2/Import/ExcelManager.cs
@@ -52,6 +52,23 @@ namespace ENI2.Import
                 _log.Error(ex);
             }
             return result; 
-        }        
+        }
+
+        
+        // TODO: ich finde man müsste den Folder zu "excel" umbenennen es ist ja nicht nur "import"..
+
+        internal void Export(string fileName, MessageCore core, List<Message> messages, out string resultMessage)
+        {
+            throw new NotImplementedException();
+
+            // Create ExcelWriter
+
+            // Open reference Sheet
+
+            // somehow loop across all messages and derive their label names from it
+
+            // save excel
+
+        }
     }
 }
diff --git a/ENI2/Properties/Resources.Designer.cs b/ENI2/Properties/Resources.Designer.cs
index 5379282a..9be029ee 100644
--- a/ENI2/Properties/Resources.Designer.cs
+++ b/ENI2/Properties/Resources.Designer.cs
@@ -370,6 +370,16 @@ namespace ENI2.Properties {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized resource of type System.Drawing.Bitmap.
+        /// </summary>
+        public static System.Drawing.Bitmap excel {
+            get {
+                object obj = ResourceManager.GetObject("excel", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized resource of type System.Drawing.Bitmap.
         /// </summary>
@@ -2092,7 +2102,16 @@ namespace ENI2.Properties {
         }
         
         /// <summary>
-        ///   Looks up a localized string similar to Excel Import.
+        ///   Looks up a localized string similar to Excel export.
+        /// </summary>
+        public static string textExcelExport {
+            get {
+                return ResourceManager.GetString("textExcelExport", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Excel import.
         /// </summary>
         public static string textExcelImport {
             get {
diff --git a/ENI2/Properties/Resources.resx b/ENI2/Properties/Resources.resx
index 37296c32..64855ba0 100644
--- a/ENI2/Properties/Resources.resx
+++ b/ENI2/Properties/Resources.resx
@@ -1739,7 +1739,7 @@
     <value>..\Resources\undo.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>
   <data name="textExcelImport" xml:space="preserve">
-    <value>Excel Import</value>
+    <value>Excel import</value>
   </data>
   <data name="textSelectAll" xml:space="preserve">
     <value>Select all</value>
@@ -1753,4 +1753,10 @@
   <data name="Logo" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>..\Resources\Logo.gif;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>
+  <data name="excel" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\excel.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+  <data name="textExcelExport" xml:space="preserve">
+    <value>Excel export</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/ENI2/Resources/excel.png b/ENI2/Resources/excel.png
new file mode 100644
index 00000000..c00f6211
Binary files /dev/null and b/ENI2/Resources/excel.png differ
diff --git a/bsmd.database/Properties/AssemblyProductInfo.cs b/bsmd.database/Properties/AssemblyProductInfo.cs
index 1c950252..ad2d76b0 100644
--- a/bsmd.database/Properties/AssemblyProductInfo.cs
+++ b/bsmd.database/Properties/AssemblyProductInfo.cs
@@ -2,6 +2,6 @@
 
 [assembly: AssemblyCompany("schick Informatik")]
 [assembly: AssemblyProduct("BSMD NSW interface")]
-[assembly: AssemblyInformationalVersion("6.8.1")]
+[assembly: AssemblyInformationalVersion("6.9.0")]
 [assembly: AssemblyCopyright("Copyright ©  2014-2021 schick Informatik")]
 [assembly: AssemblyTrademark("")]
\ No newline at end of file
diff --git a/bsmd.database/Properties/AssemblyProjectInfo.cs b/bsmd.database/Properties/AssemblyProjectInfo.cs
index 74799200..d52adb8b 100644
--- a/bsmd.database/Properties/AssemblyProjectInfo.cs
+++ b/bsmd.database/Properties/AssemblyProjectInfo.cs
@@ -1,4 +1,4 @@
 using System.Reflection;
 
-[assembly: AssemblyVersion("6.8.1.*")]
+[assembly: AssemblyVersion("6.9.0.*")]