c# export to excel with a Specific sheet name

Question

The below code when exporting to excel gives the sheet name Book1. How can i edit it to where export the sheet name as "Sams Report"?

 

private void btn_Export_Click(object sender, EventArgs e)
       {
           if (dataGridView1.Rows.Count > 0)
           {
               Microsoft.Office.Interop.Excel.ApplicationClass XcelApp = new Microsoft.Office.Interop.Excel.ApplicationClass();
               XcelApp.Application.Workbooks.Add(Type.Missing);

               // Storing header part in Excel
               for (int i = 1; i < dataGridView1.Columns.Count + 1; i++)
               {
                   XcelApp.Cells[1, i] = dataGridView1.Columns[i - 1].HeaderText;
               }

               // Storing Each row and column value to excel sheet
               for (int i = 0; i < dataGridView1.Rows.Count; i++)
               {
                   for (int j = 0; j < dataGridView1.Columns.Count; j++)
                   {
                       XcelApp.Cells[i + 2, j + 1] = dataGridView1.Rows[i].Cells[j].Value.ToString();
                   }
               }
               XcelApp.Columns.AutoFit();
               XcelApp.Visible = true;
           }
       }