Various bottles of liqueurs (Five Oak Green TN12)

Liqueurs for making fancy cocktails, or just drinking. e.g. cacao liqueur, noisette liqueur.
Some half full, a couple unopened. They’ve been sat in a cupboard for many years but does alcohol go off ?
Also some syrups and other strange things.
I could probably find a cocktail shaker, glasses and a book on how to make them if I looked deeper into the cupboard:-)

       
Approximate Location         Show marker