Grok muscles into Excel with an AI add-in of its own

You've got an idea for an Excel spreadsheet, but building it is another matter. Microsoft's Copilot can help, and now SpaceXAI is offering an alternative: the Grok add-in for Excel. Available on the Microsoft Marketplace, the add-in places a sidebar in Excel that can "search the web, update spreadsheets, or build powerful financial models," according to the product description It isn't without cost.