Microsoft.Office.Interop.Excel.Application ExcelApp = new Microsoft.Office.Interop.Excel.Application();
ExcelApp.Application.Workbooks.Open(pathToExcelShablon);
ExcelApp.Application.DisplayAlerts = false;
Microsoft.Office.Interop.Excel.Workbook xlWorkBook = ExcelApp.Workbooks.get_Item(1);
Object misValue = System.Reflection.Missing.Value;
Microsoft.Office.Interop.Excel.Worksheet workSheet = ExcelApp.ActiveSheet;