I have php template. this is a empty table (T0 rows) with some footer at the bottom. From php i try to fill the table, but if i had T1 rows (T1 > T0) then trouble appers.
<Just copying what @markBaker said (so that we can set the solution as an answer):
//Insert 10 new rows between rows 1 and 2
$objPHPExcel->getActiveSheet()->insertNewRowBefore(2,10);
Now applying the style of the row 2 to the inserted rows:
$objPHPExcel->getActiveSheet()->duplicateStyle($objPHPExcel->getActiveSheet()->getStyle('A1'),'A2:A10');