diff --git a/RhSolutions.AddIn/Services/GuessReader.cs b/RhSolutions.AddIn/Services/GuessReader.cs
index 6ad8d46..3824950 100644
--- a/RhSolutions.AddIn/Services/GuessReader.cs
+++ b/RhSolutions.AddIn/Services/GuessReader.cs
@@ -149,19 +149,18 @@ public class GuessReader : IReader
     private Dictionary<Product, double> GetDictionaryFromColumns(Range productColumn, Range amountColumn)
     {
         Dictionary<Product, double> result = new();
-
+        var firstRowIndex = 1;
         var lastRowIndex = amountColumn.Worksheet
-            .Cells[amountColumn.Rows.Count, amountColumn.Column]
+            .Cells[amountColumn.Worksheet.Rows.Count, amountColumn.Column]
             .End[XlDirection.xlUp].Row; 
         _progressBar = new("Заполняю словарь значений...", lastRowIndex);
+        Worksheet worksheet = amountColumn.Worksheet;
 
-        for (int row = 1; row < lastRowIndex + 1; row++)
+        for (int row = firstRowIndex; row < lastRowIndex + 1; row++)
         {
             _progressBar.Update();
-            var amountCells = amountColumn.Value2;
-            object currentAmountCell = productColumn.Rows.Count == 1 ? amountCells : amountCells[row, 1];
-            var productCells = productColumn.Value2;
-            object currentProductCell = productColumn.Rows.Count == 1 ? productCells : productCells[row, 1];
+            object currentAmountCell = worksheet.Cells[row, amountColumn.Column].Value2;
+            object currentProductCell = worksheet.Cells[row, productColumn.Column].Value2;
             double? amountValue = currentAmountCell as double?;
 
             if (amountValue == null || amountValue == 0 || currentProductCell == null)