diff --git a/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/Mesnac.Action.ChemicalWeighing.csproj b/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/Mesnac.Action.ChemicalWeighing.csproj
index e6bacf2..3e2e4af 100644
--- a/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/Mesnac.Action.ChemicalWeighing.csproj
+++ b/Actions/ChemicalWeighing/Mesnac.Action.ChemicalWeighing/Mesnac.Action.ChemicalWeighing.csproj
@@ -153,9 +153,6 @@
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\PlugInPlatform\Mesnac.PlugIn.dll</HintPath>
     </Reference>
-    <Reference Include="Microsoft.Office.Interop.Excel">
-      <HintPath>..\Microsoft.Office.Interop.Excel.dll</HintPath>
-    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Configuration" />
     <Reference Include="System.Core" />
@@ -776,15 +773,6 @@
     <Folder Include="Product\PptShift\" />
   </ItemGroup>
   <ItemGroup>
-    <COMReference Include="Microsoft.Office.Core">
-      <Guid>{2DF8D04C-5BFA-101B-BDE5-00AA0044DE52}</Guid>
-      <VersionMajor>2</VersionMajor>
-      <VersionMinor>8</VersionMinor>
-      <Lcid>0</Lcid>
-      <WrapperTool>primary</WrapperTool>
-      <Isolated>False</Isolated>
-      <EmbedInteropTypes>True</EmbedInteropTypes>
-    </COMReference>
     <COMReference Include="Microsoft.Office.Interop.Excel">
       <Guid>{00020813-0000-0000-C000-000000000046}</Guid>
       <VersionMajor>1</VersionMajor>