What came out on November 10
In San Francisco, at an event called The Briefing: Work at the Frontier, Anthropic presented a bundle of office products. Three are available now: Claude Sheets, a spreadsheet; Claude Whiteboards, a shared whiteboard; and Claude Data, the new name of Claude Dashboards. The fourth, Claude Meetings, went into beta two days later, and I've given it a separate article.
It follows what happened in September with the arrival of Claude Docs and Claude Slides. Documents, presentations, spreadsheets, whiteboards, dashboards: in two months Claude has lined up almost every format of office work.
The market noticed. According to CNBC, Microsoft shares fell about 3% midday after the announcement. Worth remembering that Microsoft and Google are also Anthropic investors, and that the IPO roadshow started the same day.
What Claude Sheets does
It works the way you would expect. You describe what you need and Claude builds the file: several tabs, formulas, formatting, drop-down menus. Anthropic's examples are a marketing campaign tracker and a hiring budget.
Then you edit it. You can work on it by hand, ask Claude to change a cell or add a column, or share it with coworkers. Anyone with edit access can make changes, and Claude's edits are flagged, so you can see who changed what.
The file exports to Excel or CSV. Anthropic also names some partners to move it to when the sheet turns into a process: Airtable, Asana, monday.com and Smartsheet.
Sheets is in beta on all paid subscriptions, on web, desktop and mobile. According to the help center, on smartphones it is view-only for now.
The limits, in Anthropic's own words
What I liked most about the announcement is how frank it is about limits.
Nicholas Lin, a product lead at Anthropic, called Sheets fairly basic for now and said plainly that it is not meant for financial modeling. For that work, Anthropic itself points to Claude inside Excel, through the add-ins that already exist and that I covered in the guide to the Word, Excel and PowerPoint plugins.
The most concrete technical limit is size: 100,000 cells per sheet. That is plenty for a tracker or a department budget, very little for an accounting extract or a customer master file.
In practice: Sheets is not where you run the business plan or the quarterly close. It is where the tables are born that today end up in an Excel file opened on the fly and forgotten in a shared folder.
Whiteboards and Data
The other two products complete the picture.
Claude Whiteboards is a shared digital whiteboard for brainstorming sessions. It collects the group's ideas, groups them by theme and at the end proposes action items, person by person. It works on its own or inside a meeting with Claude Meetings. When the work is mature it can move to Lucid, Miro or Zoho's Vani. Whiteboards is also in beta on paid plans.
Claude Data is the more substantial change, even if it made less noise. It is the old Claude Dashboards with a new name, and Anthropic explains that companies use data for much more than dashboards. It connects to tools like Snowflake and Salesforce, can use metric definitions certified by the data team, a feature still in beta, and produces dashboards, data stories and short narrated videos. It is available on all paid plans, and on Enterprise it turns on by default from November 19.
The certified metrics point deserves an extra line. The classic problem with an assistant connected to data is that two people ask the same question and get two different numbers. If the definition of revenue or active customer is set by the data team, that problem shrinks a lot.
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Partner apps come inside Claude
The least flashy announcement may be the most important in the medium term. With interactive connectors, partners can bring their own application inside the Claude window, and Claude can work on what is in it. The first names are Adobe, Atlassian, HubSpot, Box and Notion, while Salesforce, NetSuite and Workday got dedicated plugins with specific skills for sales, accounting and HR.
The technical foundation is still MCP, the protocol I wrote about in MCP explained for businesses. In the Claude Marketplace Anthropic now counts more than 9,000 connectors and plugins.
For those managing Claude in a company there is also news on control. Admins can limit what each connector does, for example reading Slack without being able to send messages, set more granular spending limits and, on eligible Team and Enterprise plans, set up the connection to apps like Notion, Atlassian and Dropbox once for everyone.
Who finds it already switched on
A practical detail worth knowing before your users discover it.
On Team plans, Sheets and Whiteboards are on by default. On Enterprise plans they are off, and the admin turns them on from the organization settings, in the artifacts section. Claude Data, on the other hand, switches itself on for Enterprise from November 19.
That is not a problem in itself, but it has two consequences. First: if your company has a rule about where work data must live, there is now one more place it can end up, and the rule needs updating. Second: a sheet created in Claude and shared between coworkers quickly becomes a reference document. If that document should live in the ERP or in SharePoint, say so now, before ten parallel versions appear.
New features arrive inside everyday conversation, and governance has to arrive with them, not after.
My take
Reading this launch as Anthropic against Excel is convenient for headlines but wrong in substance.
No company will move its accounting to Claude Sheets, and Anthropic is the first to say so. What Anthropic is building is something else: making sure the work that starts in a conversation, a table, a whiteboard, a dashboard, stays inside Claude and can be shared, instead of being copied elsewhere. Lin put it in a phrase that sums up the project well: showing new ways of working inside Claude as well.
The risk for Microsoft and Google is not losing complex spreadsheets. It is losing the moment where work begins. If people start in Claude, Excel becomes the place where work ends, and that is not the same position of strength.
For companies that live largely inside Microsoft 365, coexistence will be the rule for a long time. I discussed it in the comparison between Claude Enterprise and Microsoft 365 Copilot.
What I'd do this week
Three things, in order.
If you have a Team plan, decide whether Sheets and Whiteboards should stay on. Probably yes, but tell people where the files end up and when they should be exported.
If you have an Enterprise plan, before turning on Sheets try Claude Data, which switches on anyway from November 19. If you have a data team, involve them on certified metrics: it is the feature that turns a pleasant assistant into a tool you can trust.
Then try Sheets on a small, real case: a project tracker, a department budget, an event task list. If after a week the sheet is still in use and nobody has copied it into Excel, you know what it is for. If they have copied it, you know that too.