{"version":"1.9","identifier":"4371f6cf-5ee7-449b-a496-c41a4404eb17","language":"en-US","title":"Microsoft is in on a $26 billion Anthropic stock sale. Anthropic just launched a rival to Excel","layout":{"columns":7,"width":1024,"margin":32,"gutter":20},"componentLayouts":{"text":{"columnStart":0,"columnSpan":7,"maximumContentWidth":720,"margin":{"top":12,"bottom":12}},"photo":{"columnStart":0,"columnSpan":7,"margin":{"top":20,"bottom":20}}},"componentTextStyles":{"default":{"fontName":"HelveticaNeue","fontSize":18,"lineHeight":29,"textColor":"#171717"},"headline":{"fontName":"HelveticaNeue-Bold","fontSize":36,"lineHeight":42,"conditional":[{"conditions":{"maxViewportWidth":480},"fontSize":28,"lineHeight":34}]},"intro":{"fontName":"HelveticaNeue","fontSize":20,"lineHeight":28,"textColor":"#555555"},"caption":{"fontName":"HelveticaNeue","fontSize":13,"lineHeight":19,"textColor":"#666666"},"byline":{"fontName":"HelveticaNeue","fontSize":13,"lineHeight":20,"textColor":"#666666"},"body":{"fontName":"HelveticaNeue","fontSize":18,"lineHeight":29,"paragraphSpacingAfter":14,"linkStyle":{"textColor":"#00704a"}}},"metadata":{"canonicalURL":"https://567business.com/news/anthropic-claude-sheets-excel-microsoft-stock","datePublished":"2026-11-11T12:19:33.809782Z","dateModified":"2026-11-11T12:19:45.872819Z","authors":["Patrick Karsh"],"excerpt":"Claude Sheets, Whiteboards and Data sent Microsoft shares down about 2%. Sheets caps out at 100,000 cells, but the real fight is over where work starts.","thumbnailURL":"https://pub-fac99da959e344fe99d810d309cef7df.r2.dev/photos/article/4371f6cf-5ee7-449b-a496-c41a4404eb17/c236bb667e40bf62b5d4427c753398de.jpg","keywords":["ai"],"generatorName":"Frog News","generatorVersion":"1.0"},"components":[{"role":"title","text":"Microsoft is in on a $26 billion Anthropic stock sale. Anthropic just launched a rival to Excel","textStyle":"headline","layout":"text"},{"role":"intro","text":"Claude Sheets, Whiteboards and Data sent Microsoft shares down about 2%. Sheets caps out at 100,000 cells, but the real fight is over where work starts.","textStyle":"intro","layout":"text"},{"role":"byline","text":"By Patrick Karsh · Published November 11, 2026","textStyle":"byline","layout":"text"},{"role":"photo","URL":"https://pub-fac99da959e344fe99d810d309cef7df.r2.dev/photos/article/4371f6cf-5ee7-449b-a496-c41a4404eb17/c236bb667e40bf62b5d4427c753398de.jpg","caption":"Anthropic CEO Dario Amodei speaking at TechCrunch Disrupt in 2023. · TechCrunch, CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)","accessibilityCaption":"Anthropic CEO Dario Amodei speaking at TechCrunch Disrupt in 2023.","layout":"photo"},{"role":"caption","text":"Anthropic CEO Dario Amodei speaking at TechCrunch Disrupt in 2023. · TechCrunch, CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)","textStyle":"caption","layout":"text"},{"role":"body","format":"markdown","text":"Anthropic is now building the office software it used to plug into. On Tuesday the Claude maker launched Claude Sheets, a spreadsheet, and Claude Whiteboards, a shared brainstorming board, both in beta for paid users. It also made its dashboard tool generally available as Claude Data, [according to its announcement](https://claude.com/resources/articles/sheets-whiteboards-data). Microsoft shares fell about 2% on the news, [Investing.com reported](https://www.investing.com/news/stock-market-news/microsoft-stock-falls--as-anthropic-takes-aim-at-excel-and-workplace-software-5016411). The twist: Microsoft is one of the companies taking part in a separate $26 billion private stock sale tied to Anthropic's IPO, according to Anthropic's latest filing as cited by Investing.com.\n\nFor now, Claude Sheets is a light tool, not an Excel killer. Anthropic's own help page caps a sheet at 100,000 cells and lists pivot tables, macros and VBA as missing. The threat to Microsoft is less the spreadsheet than the shift it signals: Claude wants to be the place where office work starts.\n\n## What Anthropic launched\n\nAnthropic rolled out four workplace products on the same day. Claude Meetings, which joins video calls, came alongside Sheets, Whiteboards and Data, [TechCrunch reported](https://techcrunch.com/2026/11/10/anthropic-launches-claude-meetings-to-turn-workplace-discussions-into-plans-and-tasks/).","textStyle":"body","layout":"text"},{"role":"htmltable","html":"<table><tr><th>Product</th><th>What it does</th><th>Status</th></tr><tr><td>Claude Sheets</td><td>Builds and edits spreadsheets with formulas, tabs and dropdowns</td><td>Beta, paid plans</td></tr><tr><td>Claude Whiteboards</td><td>Turns a spoken plan into a shared board with owners and dates</td><td>Beta, paid plans</td></tr><tr><td>Claude Data</td><td>Connects to company data and builds dashboards and data stories</td><td>Generally available</td></tr><tr><td>Claude Meetings</td><td>Joins Google Meet calls and works on tasks during the meeting</td><td>Beta, Team and Enterprise</td></tr></table>","layout":"text"},{"role":"body","format":"markdown","text":"Sources: [Anthropic](https://claude.com/resources/articles/sheets-whiteboards-data), [TechCrunch](https://techcrunch.com/2026/11/10/anthropic-launches-claude-meetings-to-turn-workplace-discussions-into-plans-and-tasks/).\n\nAnthropic also said \"interactive connectors\" now open full versions of apps such as Adobe, Atlassian, Box and Notion beside a Claude chat. Users can work in those apps directly or ask Claude to make changes.\n\nThe Claude account's launch post drew more than 55,000 likes by Wednesday morning.\n\n<https://x.com/claudeai/status/2120206365759094857>\n\n## Why Microsoft investors flinched\n\nMicrosoft 365 is one of Microsoft's largest businesses. Revenue from its consumer and commercial products and cloud services rose 16% last fiscal year, [Business Insider reported](https://www.businessinsider.com/microsoft-stock-price-anthropic-claude-sheets-office365-2026-11), citing Microsoft's 2026 investor letter. Any sign that workers might start their day in Claude instead of Excel or PowerPoint hits that business directly.\n\nThe stock started sliding before the launch. Bloomberg reported Tuesday morning that the tools were coming, and Microsoft fell about 2% on that report, according to Investing.com. Microsoft closed the day down 2.2% at $533.16, according to Investing.com market data. Market account Bull Theory posted that the stock fell 3% in 30 minutes after the launch.\n\n<https://x.com/BullTheoryio/status/2120215938230559184>\n\nInvestor Jason Calacanis put it more bluntly. \"MICROSOFT is no longer the bundler -- they are now the bundled,\" he wrote, arguing that Microsoft \"must launch a CLAUDE competitor.\"\n\n<https://x.com/Jason/status/2120229243590189500>\n\nThe pressure did not come out of nowhere. Tech stocks were already shaky this week on hot inflation data and the questions around Nvidia's CEO, which we covered in [our Nvidia report](https://567business.com/news/nvidia-500-billion-jensen-huang-probe). Earlier this year, an Anthropic tool launch set off a broad sell-off in software stocks seen as exposed to AI, Business Insider noted.\n\n## The fine print: Claude Sheets is not Excel yet\n\nAnthropic is careful not to oversell the product. \"For now, sheets have simple spreadsheet functionality, but we are working on adding more,\" the company wrote. Anthropic product leader Nicholas Lin told Bloomberg the tool is not built for advanced financial modeling, Investing.com reported. Anthropic still points heavy users to its Claude for Excel add-in.\n\nThe gap is large on paper.","textStyle":"body","layout":"text"},{"role":"htmltable","html":"<table><tr><th>Feature</th><th>Claude Sheets (beta)</th><th>Microsoft Excel</th></tr><tr><td>Maximum size</td><td>100,000 cells per sheet</td><td>1,048,576 rows by 16,384 columns per worksheet</td></tr><tr><td>Pivot tables</td><td>Not yet</td><td>Yes</td></tr><tr><td>Macros and VBA</td><td>Not supported</td><td>Yes</td></tr><tr><td>Power Query and DAX</td><td>Not supported</td><td>Yes</td></tr><tr><td>Built-in functions</td><td>144</td><td>Hundreds</td></tr></table>","layout":"text"},{"role":"body","format":"markdown","text":"Sources: [Claude Help Center](https://support.claude.com/en/articles/18324300-get-started-with-claude-sheets), [Microsoft Excel specifications](https://support.microsoft.com/en-us/office/excel-specifications-and-limits-1672b34d-8043-40bd-8fd5-9df5e6d9a6a3).\n\nSheets also cannot pull live data from connected apps yet. It does not support HIPAA or zero data retention, which rules it out for many regulated firms for now. On Enterprise plans, Sheets and Whiteboards start switched off until an admin turns them on.\n\nStill, some users went straight to the hype. X user Rob Hallam posted a list of more than two dozen tools he said Anthropic \"just killed,\" from Excel and Google Sheets to Miro, Tableau and Power BI. The list is a hot take, not analysis, but it shows how the launch landed with builders.\n\n<https://x.com/robj3d3/status/2120213334930903125>\n\n## The real fight: who owns the starting point\n\nThe bigger story is the platform move. Anthropic is inviting software firms such as Adobe, Atlassian and HubSpot to run their apps inside Claude, while also building its own versions of common office tools. Investing.com called that \"a potentially disruptive dynamic for established software companies.\" Claude becomes the front door, and other apps become rooms behind it.\n\nAnthropic is not alone. TechCrunch noted that OpenAI unveiled its own workplace tools a few weeks ago, and Meta is pushing its Muse agent. Google's new top model is also competing hard on price, as we covered in [our Gemini 4 Carbon report](https://567business.com/news/gemini-4-carbon-price-war-fable). Each company wants workers to begin in its chat window, not in Office.\n\n## The IPO angle\n\nThe timing is not an accident. Anthropic is on its IPO roadshow and aims to price its deal on Nov. 18, Business Insider reported. It is seeking a fully diluted value of about $1.4 trillion and reported a revenue run rate of $81 billion as of Oct. 31, Investing.com said, citing the filing. We covered the offer in [our Anthropic IPO story](https://567business.com/news/anthropic-ipo-valuation-selloff).\n\nA product launch that knocks a slice off Microsoft's market value is a strong pitch to IPO buyers. It also sets up an awkward relationship. Microsoft is joining the private placement, yet it now faces Claude as a direct rival for the office desktop.\n\n## What to watch\n\n* **Enterprise switches.** Claude Data turns on by default for Enterprise plans on Nov. 19, the day after Anthropic's planned pricing. Watch how many admins also turn on Sheets and Whiteboards.\n* **Feature gaps.** Pivot tables, live data and compliance support would make Sheets a real option at big firms.\n* **Microsoft's answer.** Microsoft has been adding AI to Office through Copilot. Investors will want to hear how it plans to keep users from starting in Claude.\n\nThe short version: Claude Sheets is small today. The plan behind it is not.","textStyle":"body","layout":"text"}]}