certain columns from dataGridView to certain columns excel

Question

I have 3 columns (out of 10) in my dataGridView that I need to export to columns a,c, and i, in excel. 

 

 

for (int i = 1; i < dataGridView1.Columns.Count + 1; i++)

   { objexcelapp.Cells[1, i] = dataGridView1.Columns.Count - 1; i++ ;

}

for (int i = 0; i < dataGridView1.Rows.Count; i++)

   { for (int j = 0; j < dataGridView1.Columns.Count; j++)

{

      if (dataGridView1.Rows[i].Cells[j].Value != null)

{

         objexcelapp.Cells[i + 11, j + 1] = dataGridView1.Rows[i].Cells[j].Value.ToString();

}

}

}

 

 

right now i have everything exporting. Also, I am fairly new to c#.  

 

is this even possible?