Preheat oven to 350 degrees F.
Combine the flour, sugars, salt, and oats mix together. Add the butter and by fork or hand mix the butter with the dry ingredients until well blended.
Reserve 1 1/4 cups of the oats mixture for the topping. Press the remaining crumbs into a greased 9 x 9-inch baking pan. Place this in the oven and bake for 8 minutes or until set.
While the crust is baking, prepare the filling. Beat the cream cheese and the sugar with an electric mix. Add the egg and almond extract mix until blended. Fold in the blueberries.
Once the crust is done baking remove from oven. Spread the cream cheese mixture over top of the crust.
Crumble the reserved oat mixture over the top of the filling. Return to the oven and bake for another 37 to 42 minutes until the bars are lightly browned.