The Language and Excel Problem Stopping AI from Fixing Financial Modeling with John Yeldham
The FP&A Guy Network · 2026-06-16 · 19 min
Episode notes
In this episode of Financial Modelers Corner, Paul Barnhurst talks with John Yeldham, founder of Lodeum, about building trust in Excel models, standardizing modeling language, and creating modular, scalable models. John shares his experience leading financial modelers and using advanced Excel features like Lambda functions and dynamic arrays. Expect to Learn: Standardize language to improve clarity and collaboration Use modular blocks to make models understandable and trusted Leverage advanced Excel functions carefully for scalable, auditable models Online training through Lodeum allows flexible global learning Here are a few quotes from the episode: "If standards could be introduced for language, it allows financial modeling knowledge to be shared and scaled beyond individual experts." - John Yeldham "The role of a modeler is evolving from just churning out numbers to creating reusable, understandable modules." - John Yeldham John provides actionable strategies for financial modelers to improve clarity, scalability, and trust in their work while leveraging advanced Excel techniques and modular design principles.