Grok comes to Excel with natural-language formulas
Grok is coming to Excel as a free Microsoft 365 add-in that lets you create formulas, analyze ranges, generate charts, and test scenarios using natural-language instructions. It can also connect to emails and files in SharePoint or Google Drive to add context to workbooks.
Grok can now work inside Microsoft Excel to analyze data, create formulas, and test scenarios without making you rebuild the spreadsheet manually. The tool arrives through a free Microsoft 365 add-in.
What you can do with Grok in Excel
The add-in lets you write instructions in natural language, meaning you describe what you need as you would to another person. You can ask it to create a formula, sort data, calculate an average, or complete a series, and Grok will turn the request into a regular Excel edit.
For example, instead of remembering a function’s syntax, you can write that you want to calculate the average sales for the quarter. The formula will appear in the formula bar, where you can review or modify it like any other formula.
You can also select a range of cells and ask what changed, why the results shifted, or which data stands out. The answers identify the cells they are based on, which matters when you need to check where a conclusion came from.
Grok can also generate charts and place them directly next to the spreadsheet data. So a request like "show the monthly revenue trend" can result in a visualization inside the same workbook.
Test scenarios without rebuilding the spreadsheet
Another feature is designed for forecasting and planning. You can ask it to test a downside scenario, rerun a forecast, or help you close out end-of-month tasks without changing every formula by hand.
That does not mean Excel decides which scenario is correct for you. Grok applies the instruction to the open workbook and lets you review the result in the context of your own data.
The add-in can also use connectors to add external context. According to xAI, you can ask for information from recent emails or files stored in SharePoint and Google Drive, in addition to working with the workbook’s data.
How to use it
To get started, install Grok for Excel from Microsoft Marketplace. You can then work with Grok directly in the workbooks you already have open.
The tool is offered free as a Microsoft 365 add-in. xAI also says it is available for Word and PowerPoint, although the announcement focuses on its Excel features.
For you, the most practical benefit is less mechanical work: writing formulas, reviewing changes, preparing charts, and testing assumptions. The part to watch is verification. Even when responses cite cells and changes remain in the sheet, the results still depend on the quality of your data and on how clearly you frame the instruction.