How to save gridview data to database table ?

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ASP.NET

On a button click I need to save the gridview data to database table. on the button click , I did like this

foreach (GridViewRow gvr in GridView1.Rows)
        {
            
            
            
            OleDbConnection cont = new OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0; Data Source=path;Extended Properties=Excel 8.0;");
            OleDbCommand cmd1 = new OleDbCommand("insert into [loadtogrid] (name,dept) values ('" + gvr.Cells[0].Text + "','" + gvr.Cells[2].Text + "')", cont);
            cont.Open();
            cmd1.ExecuteNonQuery();
            cont.Close();
        }

But an error is shown as " The Microsoft Jet database engine cannot open the file ''. It is already opened exclusively by another user, or you need permission to view its data."

What might be the reason ????