Not groceries in my lifetime, but I think it may have years and years ago. But sweets, snacks and pop were the only foodstuffs sold there in my memory. A general store, as the Americans would call it, and a pretty cheap one at that. Toys, records, videos, clothes, kitchenware, small electrical goods, you name it, really.
Its passing has left a big hole shopping-wise in the small town nearest to me. I guess it will be filled by someone sooner or later, one would hope.