What are amiibo bin files?
Every physical amiibo contains an NTAG215 chip that stores a unique character ID and, in games like Smash Bros., specific training data. A .bin file is a 540-byte digital copy of this data. super smash bros amiibo bin files link
To help you get exactly what you need for your Super Smash Bros training, could you tell me: What are amiibo bin files
Understanding Amiibo Technology