2005 Vauxhall Astra how do i remve and replace headlamp on drivers side

Most cars these days require you to remove the front bumper to access the lower headlamp bolts. You will see maybe two bolts on top when you open bonnet one maybe behind the grill and some may be as I said behind the bumper, have you tried googling a picture? If you need to change the headlamp the replacement lamp will be obvious where the bolts are