Answer:
I am a delicious way of representing data.
In Paris but not in France the thinnest of its siblings.
I am useless when together but useful when I am broken apart. What am I?
What is black when you buy it, red when you use it, and gray when you throw it away?
I can be repeated but rarely in the same way. I can't be changed but can be rewritten. I can be passed down but should not be forgotten.
What never gets any wetter no matter how hard it rains?