The term FILING TOOL can be broken down into two crossword solutions: RASP (4 letters) and TAB (3 letters). A RASP is a type of file that is used to shape, smooth, or remove material from a hard surface. It is typically made of a hardened steel with a series of sharp, coarse teeth. A TAB is a small, thin piece of metal or plastic that is used to hold papers together in a filing system. It is usually attached to the top of the paper and bent over to secure it in place. Both of these tools are commonly used in filing systems to organize documents.