This document summarizes a presentation on model-driven spreadsheets. It discusses (1) the motivation for modeling spreadsheets due to errors from lack of structure, (2) inferring relational and class sheet models from spreadsheets, (3) embedding models within spreadsheets, (4) evolving models and spreadsheets together, (5) an empirical study showing users were faster and made fewer errors using model-driven spreadsheets, and (6) future work on querying, detecting errors, and assistance in model-driven spreadsheets.