excel shit

using System;
using Microsoft.Office.Interop;
using Excel = Microsoft.Office.Interop.Excel;

class Program
    {
        static void Main()
        {

            Excel.Application app = new Excel.Application();
            Excel.Workbook workbook = app.Workbooks.Open(@"E:\c#\c#OOPBasic\OOPbasicsExams\ConsoleApp1\kcmdata.xlsx");
            Excel.Worksheet sheet = (Excel.Worksheet)workbook.Sheets["Лист1"];
            Excel.Range range = sheet.UsedRange;
            int columnsCount = range.Columns.Count;
            int rowsCount = range.Rows.Count;
            for (int i = 1; i <= rowsCount; i++)
            {
                for (int j = 1; j <= columnsCount; j++)
                {
                    if (range.Cells[i, j] == null || ((Excel.Range)range.Cells[i, j]).Value2 == null)
                    {
                        goto Break;
                    }
                    Console.Write(((((Excel.Range)range.Cells[i, j]).Value2.ToString()) + "|"));
                }
                Console.WriteLine();
            }
            Break:
            workbook.Close();
            app.Quit();
        }
    }