DataTable dt = new DataTable();int col = dt.Columns.Count;string[,] array = new string[dt.Rows.Count,col];for (int i = 0; i < dt.Rows.Count; i++){ for (int j = 0; j < dt.Columns.Count; j++){ array[i, j] = dt.Rows[i][j].ToString().ToUpper().Trim(...