diff --git a/AsbCloudInfrastructure/Services/DrillingProgramService.cs b/AsbCloudInfrastructure/Services/DrillingProgramService.cs
index 783a34d7..298c9666 100644
--- a/AsbCloudInfrastructure/Services/DrillingProgramService.cs
+++ b/AsbCloudInfrastructure/Services/DrillingProgramService.cs
@@ -17,6 +17,8 @@ namespace AsbCloudInfrastructure.Services
         private const int idFileCategoryDrillingProgramItems = 13;
         private const int idFileCategoryDrillingProgram = 14;
 
+        private const int maxAllowedColumns = 256;
+
         public DrillingProgramService(IFileService fileService, IWellService wellService)
         {
             this.fileService = fileService;
@@ -71,65 +73,16 @@ namespace AsbCloudInfrastructure.Services
         {
             var resultExcelFile = new XLWorkbook(XLEventTracking.Disabled);
 
-            const int maxAllowedColumns = 256;
-
             var filteredFileNames = excelFilesNames.Distinct();
 
             foreach (var excelFileName in filteredFileNames)
             {
-                using var sourceExcelFile = new XLWorkbook(excelFileName, XLEventTracking.Disabled);
+                using var workbookSrc = new XLWorkbook(excelFileName, XLEventTracking.Disabled);
 
-                foreach (var sheet in sourceExcelFile.Worksheets)
+                foreach (var sheet in workbookSrc.Worksheets)
                 {
-                    var newSheetName = sheet.Name;
-                    int index = 1;
-
-                    if (resultExcelFile.Worksheets.Contains(newSheetName))
-                    {
-                        var suffix = $"_{index++}";
-                        if (newSheetName.Length + suffix.Length >= 31)
-                            newSheetName = sheet.Name.Substring(0, (31 - suffix.Length));
-                        newSheetName += suffix;
-                    }
-
-                    var imagesInfos = sheet.Pictures.Select(p => new ImageInfo
-                    {
-                        Id = p.Id,
-                        Data = p.ImageStream.GetBuffer(),
-                        Height = p.Height,
-                        Width = p.Width,
-                        TopLeftCellAddress = p.TopLeftCell.Address,
-                        Left = p.Left,
-                        Top = p.Top
-                    }).ToList();
-
-                    if (sheet.Columns().Count() > maxAllowedColumns)
-                    {
-                        var resultSheet = resultExcelFile.Worksheets.Add(newSheetName);
-
-                        var rngData = GetCellsRange(sheet);
-
-                        rngData.CopyTo(resultSheet.Cell(1, 1));
-
-                        var lastRowWithData = rngData.LastRowUsed().RangeAddress
-                            .LastAddress.RowNumber;
-
-                        for (int i = 1; i < lastRowWithData; i++)
-                        {
-                            resultSheet.Row(i).Height = sheet.Row(i).Height;
-                            resultSheet.Column(i).Width = sheet.Column(i).Width;
-                        }
-
-                        CopyImagesToAnotherSheet(imagesInfos, resultSheet);
-                    }
-                    else
-                    {
-                        RemovePicturesFromSheet(sheet);
-
-                        var resultSheet = sheet.CopyTo(resultExcelFile, newSheetName);
-
-                        CopyImagesToAnotherSheet(imagesInfos, resultSheet);
-                    }
+                    if(sheet.Visibility == XLWorksheetVisibility.Visible)
+                        CopySheet(resultExcelFile, sheet);
                 }
             }
 
@@ -137,6 +90,57 @@ namespace AsbCloudInfrastructure.Services
                 new SaveOptions { EvaluateFormulasBeforeSaving = true});
         }
 
+        private static void CopySheet(XLWorkbook workbookDst, IXLWorksheet sheetSrc)
+        {
+            var newSheetName = sheetSrc.Name;
+            int index = 1;
+
+            if (workbookDst.Worksheets.Contains(newSheetName))
+            {
+                var suffix = $"_{index++}";
+                if (newSheetName.Length + suffix.Length >= 31)
+                    newSheetName = sheetSrc.Name.Substring(0, (31 - suffix.Length));
+                newSheetName += suffix;
+            }
+
+            var imagesInfos = sheetSrc.Pictures.Select(p => new ImageInfo
+            {
+                Id = p.Id,
+                Data = p.ImageStream.GetBuffer(),
+                Height = p.Height,
+                Width = p.Width,
+                TopLeftCellAddress = p.TopLeftCell.Address,
+                Left = p.Left,
+                Top = p.Top
+            }).ToList();
+
+            IXLWorksheet resultSheet;
+
+            if (sheetSrc.Columns().Count() > maxAllowedColumns)
+            {
+                resultSheet = workbookDst.Worksheets.Add(newSheetName);
+
+                var rngData = GetCellsRange(sheetSrc);
+
+                rngData.CopyTo(resultSheet.Cell(1, 1));
+
+                var lastRowWithData = rngData.LastRowUsed().RangeAddress
+                    .LastAddress.RowNumber;
+
+                for (int i = 1; i < lastRowWithData; i++)
+                {
+                    resultSheet.Row(i).Height = sheetSrc.Row(i).Height;
+                    resultSheet.Column(i).Width = sheetSrc.Column(i).Width;
+                }
+            }
+            else
+            {
+                RemovePicturesFromSheet(sheetSrc);
+                resultSheet = sheetSrc.CopyTo(workbookDst, newSheetName);
+            }
+            CopyImagesToAnotherSheet(imagesInfos, resultSheet);
+        }
+
         private static IXLWorksheet CopyImagesToAnotherSheet(IEnumerable<ImageInfo> imagesInfos,
             IXLWorksheet resultSheet)
         {