- SpaceXAI just launched a Grok add-in for Excel
- However OpenAI, Anthropic and others have already beaten Grok to it
- The latest Grok 4.5 model is said to be an Excel genius
SpaceXAI (formerly xAI) has launched Grok for Excel as an add-in which looks to put Grok’s conversational AI abilities within a side panel to help with formulas, charts, analysis and more.
Although the add-in is technically free, it requires a paid account to use the features, with only SuperGrok, SuperGrok Heavy and Business/Enterprise plans capable of handling tasks within the add-in.
SpaceXAI also refers to the add-in as a ‘free’ Microsoft Marketplace tool, loosely implying its use is free despite current account limitations.
Grok now gets an Excel add-in, too
“Describe the outcome and Grok handles the syntax – averages, sorts, and fills land as normal edits in the formula bar,” the company wrote in a post announcing the new tool.
Grok for Excel supports Excel 2019 or later on Mac as well as M365 versions and web versions, and joins similar Word, PowerPoint and Outlook add-ins. All the Office add-ins promise to interact with documents, understand data and draft new content, but there are no autonomous agentic features such as sending an email in Outlook.
Realistically, SpaceXAI is just the latest company to be acknowledging that individual sectors need role-specific support, with finance emerging as one of the priorities. OpenAI already has ChatGPT for Excel, Anthropic has Claude for Excel, and of course Microsoft has its own Copilot add-in for paid plans.
The news comes days after the company launched its latest Grok 4.5 model. “Grok Build is capable of building complex Excel models that involve research from the web, multi-sheet formula use, and even leaves stickies or notes behind for future reference,” the company wrote.
SpaceXAI also praised the model’s capabilities across Word and PowerPoint.
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