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The Foundry Blog

Sharper formulas. Cleaner sheets.

Insights, tutorials, and updates from the team building the future of spreadsheet development.

17 min read

Proven 7-Step Guide to Spreadsheet Global Variables

Discover how to implement spreadsheet global variables to eliminate formula spaghetti and transform chaotic workbooks into scalable, error-free financial models.

23 min read

7 Proven Ways to Implement Spreadsheet Global Variables

Discover how to use spreadsheet global variables to streamline financial modeling. Learn advanced techniques to eliminate formula spaghetti and reduce errors.

14 min read

7 Proven Strategies for Advanced Multi-Line Formula Formatting

Discover how treating spreadsheet logic like software code eliminates errors. Learn the engineering principles behind advanced multi-line formula formatting to scale your financial models.

14 min read

7 Proven Strategies for Advanced Multi-Line Formula Formatting

Discover how treating spreadsheet logic like software code eliminates errors. Learn the engineering principles behind advanced multi-line formula formatting to scale your financial models.

Data analyst reviewing an AI spreadsheet generator workbook for audit and migration
13 min read

AI spreadsheet generator: 9 Proven Reasons It Makes You Sloppier (And How to Fix It)

An AI spreadsheet generator can create a workbook fast. However, it can also lock in bad structure, hidden assumptions, and un-auditable formulas. This tutorial shows how power users force AI outputs to become maintainable, cross-platform logic with snippets, multi-line editors, and controlled variables.

Modern spreadsheet interface showing syntax highlighted formula code.
9 min read

The End of Manual Debugging: Advanced Strategies for Resolving Spreadsheet Formula Errors

Stop wasting hours untangling nested IF statements and generic syntax errors. Discover advanced techniques, custom variables, and IDE-like methodologies to permanently elevate your spreadsheet debugging architecture.

Advanced Excel Formula Debugging: 7 Ultimate Reasons the Native Editor is Destroying Your Logic
16 min read

Advanced Excel Formula Debugging: 7 Ultimate Reasons the Native Editor is Destroying Your Logic

Stop sabotaging your enterprise data models. Discover why advanced Excel formula debugging requires an Integrated Development Environment to permanently eradicate syntax errors.

Analyst debugging a spreadsheet with Excel evaluate nested formulas fast workflow
13 min read

Excel evaluate Nested Formulas: 9 Easy, Effective Ways to Debug Without Losing Your Weekend

Excel evaluate sounds simple until a nested IF turns into a black box. This guide shows a faster, more auditable way to debug formulas using Evaluate Formula, F9 checks, and a lightweight “IDE-like” workflow.

Analyst reviewing a multi step formula in Excel for intermediate results and error isolation on a spreadsheet grid
12 min read

Multi step formula in Excel for auditable models: 9 effective patterns for intermediate results and error isolation

A technical guide to designing a multi step formula in Excel that remains auditable under change: intermediate results, error isolation, evaluation workflows, and cross-platform variable patterns.

Analyst tracing cell dependencies in a large Excel spreadsheet using colored arrows
14 min read

How to Read Trace Dependents in Excel: 7 Essential Truths Analysts Ignore

Most analysts use Trace Dependents wrong. Discover 7 essential truths about reading Excel’s dependency arrows correctly and why your current approach is costing you hours of debugging time.

Analyst debugging complex spreadsheet formulas on a desktop monitor with formula audit arrows and data sheets
12 min read

Advanced Spreadsheet Formula Debugging in MS Excel: 7 Brutal Truths You Keep Ignoring

Advanced spreadsheet formula debugging in MS Excel is not a skill gap — it is a systems failure. These 7 brutal truths expose why manual debugging destroys analyst productivity and what you should do instead.

Desktop monitor displaying Excel F9 formula debugging on a spreadsheet
15 min read

Excel F9 Formula Debugging: 7 Proven Ways to Reclaim Time

Discover how Excel F9 formula debugging can instantly reveal hidden errors in your spreadsheets, saving you hours of frustration and helping you reclaim your valuable family time.