The Mistakes in Structure and Data Thinking That Break Models with Mark Proctor @thefpandaguy
The Mistakes in Structure and Data Thinking That Break Models with Mark Proctor  @thefpandaguy
Uploaded May 2026 | Updated September 2026, 1 week ago
In this episode of Financial Modeler’s Corner, host Paul Barnhurst (aka The FP&A Guy) is joined by guest Mark Proctor. Together, they discuss the intricacies of financial modeling and data analysis, with a focus on building efficient models and leveraging automation in Excel. Mark shares his deep expertise on why structure is key, how to automate tedious tasks, and how Excel continues to evolve to meet the demands of modern financial professionals.

Mark Proctor is a seasoned financial professional with a background in accounting and finance, an Excel MVP, and the founder of Excel Off The Grid, a platform dedicated to improving efficiency and effectiveness in Excel. With decades of experience, Mark's insights are invaluable for anyone looking to optimize their use of Excel for financial modeling and beyond. He has helped countless professionals streamline their work through better data structure and automation techniques.

Expect to Learn
Financial modeling vs. data analysis
Automation in Excel with Power Query & Pivot
Why VLOOKUP is outdated and modern alternatives
Building flexible, stakeholder-friendly models
Reducing manual and repetitive Excel tasks
Here are a few quotes from Mark Proctor:
"Hard-coding is the enemy of a flexible financial model. Once you start hard-coding, you lose the ability to see what's really driving the model." - Mark Proctor
"One of the key takeaways from bad models is that manual adjustments should always be documented and trackable." - Mark Proctor

As Excel continues to evolve with powerful features like dynamic arrays and advanced automation, the tools discussed in this episode are essential for anyone looking to keep pace with the future of financial modeling. Mark’s emphasis on mastering the basics and thinking structurally will help you work faster and more effectively.

Follow Mark:
Website - exceloffthegrid.com
LinkedIn - linkedin.com/in/markstephenproctor

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In today’s episode:
[00:00] - Trailer
[01:54] - Financial Modeling Horror Stories
[04:55] - Lessons from Bad Models
[06:28] - Mark's Career Journey and Background
[12:59] - Data Analysis vs. Financial Modeling
[19:17] - Excel as a Data Analysis Tool: Key Innovations
[22:55] - Automation in Excel and Practical Tips
[33:59] - The Importance of Mastering Excel Basics
[44:19] - Wrap-Up and Closing Remarks
The Mistakes in Structure and Data Thinking That Break Models with Mark ProctorAdaptability is the new job security.Incorrect NAV harms fund investors.The biggest opportunities go unnoticed.Building Financial Modeling Skills While Playing an E-Sport Game with Professor Eric KelleyAI in Finance for Professionals Dealing with Errors, Overhype, and Constant Learning PressureStop waiting for software to exist.Every Excel expert lives on shortcuts.Imperfect moments make the best stories.AI in Financial Modeling for Analysts to Improve Accuracy and Speed with David IngrahamYour network is your real job strategy.Your data deserves stronger protection.
The FP&A Guy |

The Mistakes in Structure and Data Thinking That Break Models with Mark Proctor

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