Google Sheets spreadsheets can now hold twice as many cells as before. The ceiling has moved to 20 million cells per file, up from the previous 10 million, and Google says the change is now generally available as of September 10, 2026. That date marks the start of a gradual rollout for Rapid Release domains, with Scheduled Release domains beginning on September 28 and Google allowing as much as 15 days for the change to become visible.
The higher limit is not restricted to files created from scratch. It applies to new spreadsheets, to existing ones, and to files brought in from elsewhere, including imports of Microsoft Excel .xlsx workbooks and CSV files.
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Google says the byte size limit for imported spreadsheets will also rise, though the announcement gives no date for that change. The notice says nothing about pricing, and it lists the bigger cell count as reaching every Workspace customer, subscribers on Workspace Individual, and anyone using a personal Google account.
The cell increase lands in a busy stretch for Sheets. Google announced the same day that Gemini in Sheets is available on Android devices, where it can answer questions about spreadsheet data, surface insights, and build charts, with suggested prompts to get started.
A day earlier, Google introduced an improved editor for calculated fields in Sheets pivot tables, built around a new formula dialog with menus for selecting column names and validation that checks syntax and formulas as they are typed. That same day brought an orchestration update letting Gemini work across Workspace apps such as Chat, Drive, Docs, Slides, and Gmail, rather than requiring users to prompt inside each app separately.
The broader Gemini rollout has also touched how usage is metered. Earlier this year Google split the daily prompt allowances for its Thinking and Pro models, giving AI Pro subscribers 300 Thinking prompts and 100 Pro prompts per day, while AI Ultra subscribers received 1,500 Thinking prompts and 500 Pro prompts daily. Free users kept access to both models under what Google calls Basic access, with Google warning that those daily limits could change often.
For spreadsheet users, the practical effect of today’s change is headroom. Large datasets, imported workbooks, and heavily formula-driven models that once ran against the 10 million cell wall now have double the space before Sheets pushes back.
