C# - Zeile in Excel-Datei hinzufügen

private bool AddLineToExcelFile(string file, string[] data)
        {
            try
            {
                ApplicationClass excelApplication = null;
                Workbook excelWorkbook = null;
                Worksheet excelWorksheet = null;
                excelApplication = new ApplicationClass();
                excelApplication.Visible = false;

                System.Threading.Thread.Sleep(2000);
                object missing = System.Reflection.Missing.Value;
                excelWorkbook = excelApplication.Workbooks.Open(file, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing);
                excelWorksheet = (Worksheet)excelWorkbook.Worksheets.get_Item(1);
                int row = 1;
                while (excelWorksheet.Cells[row, 1].ToString() != "")
                {
                    string cellNumber2 = ("A" + row).ToString();
                    if (excelWorksheet.get_Range(cellNumber2, cellNumber2).Value2 == null)
                        break;

                    else
                        row++;
                }

                for (int i = 0; i < data.Length; i++ )
                    excelWorksheet.Cells[row, i + 1] = data[i];
                
                excelWorkbook.Save();
                excelWorkbook.Close();
                excelApplication.Quit();
                return true;
            }
            catch
            {
                return false;
            }
        }