How can I only copy paste the cells/data which doesn't have formulas in excel ? from source workbook and destination template using C#

int lastLine = Math.Max(
    worksheet1.UsedRange.Rows.Count,
    worksheet2.UsedRange.Rows.Count);

for (int i = 1; i <= lastLine; i++)
{
    //for (int j = 1; j <= lastLine; j++)
    //{
        Range c = worksheet1.Cells[i];
        if (!(c.HasFormula))

using Microsoft.Office.Interop.Excel;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
//using Microsoft.Office.Interop.Excel;
using System.Windows.Forms;
using _Excel = Microsoft.Office.Interop.Excel;
namespace Excel
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            string safeExcelFilePath = @"[directory of the excel workbooks]";

            string excelFile1 = Path.Combine(safeExcelFilePath, textBox1.Text);
            string excelFile2 = Path.Combine(safeExcelFilePath, textBox2.Text);

            _Application _excel = new _Excel.Application();

            _excel.DisplayAlerts = false;

            Workbook workbook1 = _excel.Workbooks.Open(excelFile1);
            Workbook workbook2 = _excel.Workbooks.Open(excelFile2);

            Worksheet worksheet1 = workbook1.Worksheets["Penetration Setup"];
            Worksheet worksheet2 = workbook2.Worksheets["Penetration Setup"];


           
            
                // copy all used cells with formatting & formulas
                worksheet1.UsedRange.Copy(Type.Missing);

           
                    // paste all copied cells with formatting & formulas
                    worksheet2.UsedRange.PasteSpecial(
                        XlPasteType.xlPasteAll,
                        XlPasteSpecialOperation.xlPasteSpecialOperationNone,
                        Type.Missing, Type.Missing);
                
                // If values only, then change XlPasteType.xlPasteAll
                //   to XlPasteType.xlPasteValues

                // overwrite the workbook
                workbook2.SaveAs(
                Filename: excelFile2,
                AccessMode: XlSaveAsAccessMode.xlNoChange);

            workbook2.Close();
            workbook1.Close();

            _excel.Quit();
        }

        private void releaseObject(object obj)
        {
            try
            {
                System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
                obj = null;
            }
            catch (Exception ex)
            {
                obj = null;
                MessageBox.Show("Unable to release the Object" + ex.ToString());

            }
            finally
            {
                GC.Collect();
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.Filter = "Excel Files|*.xls;*.xlsx;*.xlsm";
            ofd.FilterIndex = 1;
            if (ofd.ShowDialog() == DialogResult.OK)
            {
                string sFileName = ofd.FileName;
                textBox1.Text = sFileName;
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.Filter = "Excel Files|*.xls;*.xlsx;*.xlsm";
            ofd.FilterIndex = 1;
            if (ofd.ShowDialog() == DialogResult.OK)
            {
                string sFileName = ofd.FileName;
                textBox2.Text = sFileName;
            }
        }
        
    }
}