Graph structures in general are painful in Excel. You can generate adjacency lists or matrices and do stuff that way, but it's painful and non-intuitive. I'm cu

Graph structures in general are painful in Excel. You can generate adjacency lists or matrices and do stuff that way, but it's painful and non-intuitive. I'm currently helping some people who started modeling such a datastructure in Excel. You end up with massive sparse matrices that aren't intuitive to work with, visualize, traverse, and so forth.