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The Foundry Blog

Sharper formulas. Cleaner sheets.

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

google sheets formulas multiply multiple cells highlighted on a computer screen
12 min read

Stop Relying on the Basics: 7 Bold Ways Google Sheets Formulas Multiply Multiple Cells

Learn why the native function fails on large datasets and discover how to build scalable, error-free multiplication logic for massive columns.

Isometric wooden desk with a keyboard, mug, and a holographic spreadsheet formula code editor display.
12 min read

9 Underrated Spreadsheet Formula Code Editor Strategies

Stop wrestling with standard formula bars. Discover how a spreadsheet formula code editor streamlines complex logic, reduces errors, and boosts productivity.

Split image showing tangled wires versus an organized green grid as an AI Excel formula assistant.
12 min read

AI Excel Formula Assistant: 7 Powerful Ways to Fix Bad Logic

Discover how an AI Excel formula assistant eliminates catastrophic spreadsheet errors. Learn seven powerful tactics to refactor your financial models securely.

Abstract 3D visualization of a Google Sheets formula editor with branching logic paths and glowing data nodes.
10 min read

Google Sheets Formula Editor: 7 Proven Ways to Fix Logic

Discover how upgrading to an advanced Google Sheets formula editor can prevent costly modeling errors and streamline your entire data analysis workflow.

how to use the Excel formula PRODUCT
10 min read

7 Effortless Tips on How to Use the Excel Formula PRODUCT

Stop typing endless asterisks. Learn exactly how to use the Excel formula PRODUCT to multiply massive ranges, handle blank cells, and avoid messy errors instantly.

Laptop on a desk with data grids next to a coffee cup
10 min read

11 Painless Hacks for Your Essential Google Sheets Formulas Cheat Sheet

Master data analysis quickly with our essential Google Sheets formulas cheat sheet. Discover practical hacks to clean data, build lookups, and fix errors.

Translucent monitor with a 3D grid and glowing nodes, representing an advanced excel formula editor interface.
14 min read

Advanced excel formula editor: 7 Proven Logic Tips

Discover how an advanced excel formula editor transforms complex spreadsheet logic. Learn proven techniques to streamline financial models and eliminate costly errors.

Isometric servers with floating data grids and glowing green connections for spreadsheet mastery.
10 min read

Spreadsheet Mastery: 7 Ultimate Rules to Break Legacy Habits

Unlock true spreadsheet mastery by discarding legacy habits. Learn to deploy global variables, code-editor environments, and multi-agent AI for robust data architecture.

Isometric house blueprint with floating digital layers for spreadsheet formula snippet management.
12 min read

7 Ultimate Strategies for Spreadsheet Formula Snippet Management

Discover how to treat workbook logic like code and eliminate structural chaos using proven spreadsheet formula snippet management techniques.

Isometric 3D blocks and glowing lines showing advanced multi-line formula formatting on a dark grid background.
13 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.

Stylized laptop and calculator with floating data windows to Excel evaluate nested formulas fast.
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.

3D graphic of a monitor with arrows showing how to read Trace Dependents in Excel, plus keyboard and mouse.
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.