From Sarlat :

Take the Bergerac road and turn right immediately
after the supermarket "Casino" onto the D25 road,   St André d'Allas, St Cyprien.
Les Filolies is 7 kms further along this road, on your left. Don't go into the village of St André d'Allas.

From Les Eyzies :

Follow the D47 road towards Sarlat.
Just before the castle of Puymartin there is a graveyard on your right. Turn right here, direction Allas.
Les Filolies is at the end of this road.