diff --git a/src/PriceListTools/ConvertTool.cs b/src/PriceListTools/ConvertTool.cs
index 4c95988..1af27f5 100644
--- a/src/PriceListTools/ConvertTool.cs
+++ b/src/PriceListTools/ConvertTool.cs
@@ -1,4 +1,6 @@
-namespace RehauSku.PriceListTools
+using System;
+
+namespace RehauSku.PriceListTools
 {
     internal class ConvertTool : PriceListTool
     {
@@ -6,7 +8,20 @@
 
         public void GetCurrent()
         {
-            Current = new Source(ExcelApp.ActiveWorkbook);
+            try
+            {
+                Current = new Source(ExcelApp.ActiveWorkbook);
+            }
+
+            catch (Exception exception)
+            {
+                System.Windows.Forms.MessageBox.Show
+                    (exception.Message,
+                    "Ошибка распознавания",
+                    System.Windows.Forms.MessageBoxButtons.OK,
+                    System.Windows.Forms.MessageBoxIcon.Information);
+                throw exception;
+            }
         }
 
         public void FillTarget()
diff --git a/src/RehauSku.Assist.csproj b/src/RehauSku.Assist.csproj
index 8953924..be4a8b0 100644
--- a/src/RehauSku.Assist.csproj
+++ b/src/RehauSku.Assist.csproj
@@ -122,6 +122,7 @@
     <Compile Include="Assistant\RequestModifier.cs" />
     <Compile Include="Assistant\SkuExtensions.cs" />
     <Compile Include="PriceListTools\CombineTool.cs" />
+    <Compile Include="PriceListTools\ConvertTool.cs" />
     <Compile Include="PriceListTools\PriceListTool.cs" />
     <Compile Include="PriceListTools\MergeTool.cs" />
     <Compile Include="PriceListTools\PriceList.cs" />