The Excel Functions Challenge Series.
The Full Stack Modeller Challenge Series is a bundle of three practical Excel challenge workbooks, with levels that start gentle and get pretty tricky. All three, plus any we create in the future, are yours for life.
Get the bundle · £25Our challenge series will rewire how you use Excel.
One payment of £25 gets you lifetime access to all three Challenge Series on the Full Stack Modeller platform. Each series is a set of workbooks with levels that build from the basics up to problems that will make you think hard! You work at your own pace, and the workbooks are yours to keep.
The three series cover: the Excel Functions series, the LET & LAMBDA series, and the Spilling, Lifting & Broadcasting series. Start wherever you like, come back to the others whenever you want.
Together they cover the parts of modern Excel that most people never quite get comfortable with: the functions that replace half your old habits, the tools for writing your own reusable logic, and the grid behaviours that trip people up when one formula suddenly fills a whole range.
Three series, one bundle.
Tap any series to see what's inside. All three are live and included, so start wherever suits you.
The original series, built around the functions that do most of the heavy lifting in real modelling work. Six functions, each with its own workbook and eight levels that ramp up as you go.
A six-part series on writing your own reusable logic in Excel. This is where you stop copying the same nested formula everywhere and start building tools you can name and reuse.
Modern Excel's least understood behaviours: the moments when a calculation in one cell doesn't give you one cell of output. Get these right and your formulas start doing far more with far less.
Built for beginners. Open to everyone.
Beginners
If you know your way around a spreadsheet but you've never properly used dynamic arrays, you're exactly who we had in mind. The early levels assume nothing and walk you through the logic before asking you to do anything clever.
Intermediates
You'll breeze through the first few levels, but the later ones tend to catch out even confident users. You'll probably pick up a few tricks you didn't know were there.
Three steps, then you're in.
Get the bundle
Pay once via the link and your account is set up on the Full Stack Modeller platform. That's where all three series live. The workbooks are yours to keep, with lifetime access.
Dive into any series
All three series are waiting in your account from the moment you're in. Pick whichever grabs you first and work through the levels at your own pace. The others are there whenever you want them.
Tell us what worked
When you're done, send us a bit of feedback. It genuinely shapes how these series grow and what we build next.
Run by people who build models for a living.
Full Stack Modeller is a global Excel and financial modelling training platform run out of the UK by Giles Male and his business partner Myles Arnott. Thousands of finance professionals use it every day to level up their Excel and modelling skills.
Giles, who designed this challenge, is one of only three people in the world to hold both the Microsoft MVP award and the Financial Modelling Institute's MFM certification.
None of which matters much on a Monday morning when you're trying to get Biscuit fed. But it's why the challenges are worth your time.
Visit fullstackmodeller.comReady to level up?
Get the bundle and all three series are yours straight away. One payment, work through them at your own pace, keep the workbooks for good.
Get the bundle · £25