This repository provides interactive Excel exercises for learning AI and machine learning fundamentals by hand. It covers basic operations like softmax and matrix multiplication, progressing through deep learning concepts including MLPs, backpropagation, RNNs, LSTMs, and Transformers. Advanced topics include modern architectures like Mamba, xLSTM, AlphaFold, and DeepSeek’s Multi-head Latent Attention with Mixture of Experts.