You will regret the hours spent trying to understand and apply Excel formulas. And for good reason, your knowledge is now obsolete. If, on the other hand, Excel has always made you break out in hives, you can finally rejoice. First rolled out in October 2024 for the Max, Team, and Enterprise plans, the integration of Claude into Excel is now reaching a new milestone. And it is a game-changer.
Claude does not simply read a single cell or an isolated formula. It analyzes the entire workbook: nested formulas, dependencies between sheets, calculation flows, etc. Each response is accompanied by precise citations at the cell level, allowing the logic to be verified at the source. You can therefore question a complex model as you would an analyst: “Why is this indicator evolving this way?” “Which formula feeds this total?” “What happens if I change this assumption?”
The tool makes it possible to modify global assumptions, simulate scenarios, detect errors (#REF!, #VALUE!, regular Excel users will understand), and explain their origin. It is also capable of generating models from scratch (for example, a draft financial model) or filling in existing templates, while strictly respecting the formulas and logic already in place.
Excel, supercharged
We tested Claude in Excel online on internal documents and by creating models from an empty workbook. The onboarding is immediate. The dialogue window makes it possible to analyze an entire workbook, target a specific column or formula, and refine the results as you would with any conversational AI. Child’s play.
A concrete example: we created a table listing sales profits. With a simple conversation, the tool was able to create a formula to predict performance based on inventory and actual sales. Impressive! A notable point: no advanced Excel expertise is required. Where complex models often intimidate, Claude significantly lowers the barrier to entry. In a single environment, without exporting data or switching tools, it covers most professional use cases. In this column, we have already explored specialized alternatives to Excel. But here, Claude’s strength lies elsewhere: it does not replace Excel; it makes it remarkably easy to use.
That said, not everything is magical. Some users still report risks of hallucinations or limitations related to very large data volumes. The advice that comes up most often is simple: let Claude explain and propose, but always verify before applying. In fact, during onboarding, the tool asks whether you want to apply changes without prior validation. During our tests, we mostly encountered slowdowns, with the tool churning for minutes without delivering the promised result in the document.
On everything else, it shines. Claude is particularly effective at writing or correcting formulas, analyzing logic, or cleaning a dataset. Still, at the risk of stating the obvious, it should not become an autonomous operator on critical data without human oversight.
For $20 more…
The applications are immediate: sales reporting, marketing analysis, CRM database cleaning, preliminary financial analyses before decision-making… But what does it offer that is better than Excel’s integration with ChatGPT or Excel Copilot? The main benefit is its ability to handle large files and produce detailed explanations. You have to test it to truly grasp the gain.
Its main drawback? The tool is available only via Claude and in Excel. If you use Google Sheets, for example, move along. If you are already paying for other generative AI tools, move along as well: the tool does not even offer a free trial period. That may also be its strength. Claude and Excel share the same ground: professional, structured, demanding use cases. At $20 per month, the offering becomes hard to ignore for regular Excel users looking to save time without sacrificing accuracy.
Written in French by Zakaria Choukrallah, edited in English by Eric Nielson
