Rice paper is not a type of paper for writing! Rice paper is not paper, nor is it made of wood, and it has nothing to do with paper; it is an edible item. Normally, when we eat candy, after peeling off the wrapper, there is a thin, translucent layer inside, which we usually call the "candy coating," and that is rice paper.
Rice paper is made from starch, gelatin, and a small amount of lecithin, and it is used as food packaging. The layer on the surface of the famous White Rabbit creamy candy that everyone is familiar with is rice paper, and it is also sometimes used on things like candied haws.
In summary, rice paper is mainly used as an inner layer for packaging items like candy, pastries, or medicine to prevent them from sticking to the outer wrapper and also to act as a moisture barrier. It also has a special use for masking the bitter taste of medicinal powders, tablets, and pills.