Which of the following is not a formatting and layout best practice for financial modeling?

• A. Always password protecting your model
• B. Use consistent fonts
• C. Separate inputs and outputs
• D. Include an audit trail

Answer: (A)

This question is about distinguishing formatting and layout practices from security controls in financial models. Password protecting a model addresses who can access the file, not how the sheet is organized or presented. Formatting and layout best practices focus on readability and repeatability—using consistent fonts so the model looks professional, separating inputs from calculations and outputs so users don’t accidentally overwrite formulas, and including an audit trail to document changes and support reproducibility. These elements directly affect how clearly the model is laid out and how easily someone can follow the logic. Password protection, while useful for security, doesn’t improve the structure, clarity, or traceability of the model itself, so it isn’t considered a formatting or layout best practice.