diff --git a/ConsoleApp1/ConsoleApp1.csproj b/ConsoleApp1/ConsoleApp1.csproj
index 392da02e..42fc49a5 100644
--- a/ConsoleApp1/ConsoleApp1.csproj
+++ b/ConsoleApp1/ConsoleApp1.csproj
@@ -7,7 +7,7 @@
 
   <ItemGroup>
     <PackageReference Include="BenchmarkDotNet" Version="0.12.1" />
-    <PackageReference Include="DocumentFormat.OpenXml" Version="2.13.1" />
+    <PackageReference Include="ClosedXML" Version="0.95.4" />
     <PackageReference Include="Mapster" Version="7.2.0" />
     <PackageReference Include="Microsoft.AspNetCore.SignalR.Client" Version="5.0.5" />
     <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
diff --git a/ConsoleApp1/Program.cs b/ConsoleApp1/Program.cs
index 05546ee7..03daec69 100644
--- a/ConsoleApp1/Program.cs
+++ b/ConsoleApp1/Program.cs
@@ -1,55 +1,123 @@
-using AsbCloudApp.Data;
-using AsbCloudDb.Model;
-using AsbCloudInfrastructure.Services;
-using AsbCloudInfrastructure.Services.Cache;
-using DocumentFormat.OpenXml;
-using DocumentFormat.OpenXml.Packaging;
-using DocumentFormat.OpenXml.Spreadsheet;
-//using AsbSaubReport;
+//using AsbSaubReport;
 //using AutoMapper;
-using Microsoft.EntityFrameworkCore;
 using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Linq;
+using ClosedXML.Excel;
 
 namespace ConsoleApp1
 {
+    //var options = new DbContextOptionsBuilder<AsbCloudDbContext>()
+    //    .UseNpgsql("Host=localhost;Database=postgres;Username=postgres;Password=q;Persist Security Info=True")
+    //    .Options;
+    //var context = new AsbCloudDbContext(options);
+
+
     class Program
     {
+        private static void RemovePicturesFromSheet(IXLWorksheet sheet)
+        {
+            var picsNames = new List<string>();
+
+            foreach (var p in sheet.Pictures)
+                picsNames.Add(p.Name);
+
+            var filteredPics = picsNames.Distinct();
+
+            foreach (var n in filteredPics)
+                sheet.Pictures.Delete(n);
+        }
+
+        private static IXLRange GetCellsRange(IXLWorksheet sheet)
+        {
+            var firstTableCell = sheet.FirstCellUsed();
+            var lastTableCell = sheet.LastCellUsed();
+            var rngData = sheet.Range(firstTableCell.Address, lastTableCell.Address);
+
+            return rngData;
+        }
 
         static void Main(/*string[] args*/)
         {
-
-            //var options = new DbContextOptionsBuilder<AsbCloudDbContext>()
-            //    .UseNpgsql("Host=localhost;Database=postgres;Username=postgres;Password=q;Persist Security Info=True")
-            //    .Options;
-            //var context = new AsbCloudDbContext(options);
-
-            var fileNames = new string[] { @"d:\temp\1\book1.xlsx", @"d:\temp\1\book2.xlsx" };
-
-            using var spreadsheetDocument = SpreadsheetDocument.Create(@"d:\temp\1\b.xlsx", SpreadsheetDocumentType.Workbook);
-            // Add a WorkbookPart and Workbook objects.  
-            WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart();
-            workbookpart.Workbook = new Workbook();
-
-            // Add a WorksheetPart to the WorkbookPart.
-            WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
-            worksheetPart.Worksheet = new Worksheet(new SheetData());
-
-            // Add Sheets to the Workbook.
-            Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.
-                AppendChild<Sheets>(new Sheets());
-
-            // Append a new worksheet and associate it with the workbook.
-            Sheet sheet = new Sheet()
+            var sourceExcelPaths = new List<string>
             {
-                Id = spreadsheetDocument.WorkbookPart.
-                    GetIdOfPart(worksheetPart),
-                SheetId = 1,
-                Name = "mySheetNameISHere!"
+                //@"D:\excels\excel1.xlsx",
+                //@"D:\excels\excel2.xlsx"
+                //@"D:\excels\e1.xlsx",
+                @"D:\excels\e2.xlsx",
+                @"D:\excels\e3.xlsx",
+                @"D:\excels\e4.XLSX",
+                @"D:\excels\e5.XLSX",
+                @"D:\excels\e6.XLSX"
             };
-            sheets.Append(sheet);
 
-            spreadsheetDocument.Save();
-            spreadsheetDocument.Close();
+            const string resultExcelPath = @"D:\excels\result.xlsx";
+
+            using var resultExcelFile = new XLWorkbook();
+
+            const int maxAllowedColumns = 256;
+
+            foreach(var sourceExcelPath in sourceExcelPaths)
+            {
+                using var sourceExcelFile = new XLWorkbook(sourceExcelPath);
+
+                foreach (var sheet in sourceExcelFile.Worksheets)
+                {
+                    // Если в файле очень много колонок и многие из них пустые -
+                    // предлагаем удалить их вручную или пытаемся копировать
+                    // ячейки попорядку (не красиво). Красиво не получится. 
+                    if (sheet.Columns().Count() > maxAllowedColumns &&
+                        sheet.Columns().Count() / sheet.ColumnsUsed().Count() > 5)
+                    {
+                        Console.WriteLine($"В файле {Path.GetFileName(sourceExcelPath)} " +
+                            $"{sheet.Columns().Count() - sheet.ColumnsUsed().Count()} пустых колонок " +
+                            $"без записей. \n Если продолжить выполнение, форматирование выходного" +
+                            $"листа может быть нарушено. \n Для сохранения структуры документа " +
+                            $"рекомендуется прервать выполнение и удалить неиспользуемые колонки. \n" +
+                            $" Продолжить выполнение? (y/n)");
+
+                        var res = Console.ReadLine();
+
+                        if (res != "y")
+                            return;
+
+                        var rngData = GetCellsRange(sheet);
+
+                        RemovePicturesFromSheet(sheet);
+
+                        var wsCopy = resultExcelFile.Worksheets.Add(sheet.Name);
+                        wsCopy.Cell(1, 1).Value = rngData;
+
+                        GC.Collect();
+                    }
+                    // Если колонок в файле немного, но среди них также есть пустые - 
+                    // проще удалить ненужные колонки и скопировать лист красиво.
+                    else if (sheet.Columns().Count() < maxAllowedColumns &&
+                             sheet.Columns().Count() / sheet.ColumnsUsed().Count() > 2)
+                    {
+                        RemovePicturesFromSheet(sheet);
+
+                        var columnsToDelete = sheet.Columns().Skip(sheet.ColumnsUsed().Count());
+
+                        foreach (var d in columnsToDelete)
+                            d.Delete();
+
+                        sheet.CopyTo(resultExcelFile, sheet.Name);
+                        GC.Collect();
+                    }
+                    // Если по колонкам все хорошо, копируем лист красиво.
+                    else
+                    {
+                        RemovePicturesFromSheet(sheet);
+
+                        sheet.CopyTo(resultExcelFile, sheet.Name);
+                        GC.Collect();
+                    }
+                }
+            }
+
+            resultExcelFile.SaveAs(resultExcelPath);
 
             Console.WriteLine("Done. Press any key to quit.");
             Console.ReadKey();