Proton launches Sheets, its encrypted alternative to Excel and Google Sheets

Proton is a well-known privacy-focused company that offers a wide range of services, such as VPN, Mail, cloud storage, password manager, authenticator, AI chatbot, and more. Its latest addition caters to those who want to keep their spreadsheets more secure. Today, Proton announced Proton Sheets, an encrypted alternative to Excel and Google Sheets.

There is a running joke that all the modern infrastructure is held by some Excel spreadsheets, but the reality is not that far away. Multiple industries and businesses rely on table processors like Excel and Google Sheets, and Proton says that the world needs a secure alternative that ensures better security and measures against AI training, surveillance, and tracking. The company quotes Google's own support documents that warn against putting confidential data into Google Sheets because it might be used to train Gemini or accessed by reviewers.

According to Proton, Proton Sheets is an easy-to-use spreadsheet processor that supports collaborative work, formulas, analysis, charts, and other features present in well-established industry mastadons like Excel. All that is end-to-end encrypted by default, and Proton promises that only you can access your sheets and the stored data. Additionally, Proton Sheets supports XLS and CVS files, so you can bring your existing documents to the new service and encrypt them.

Like many other Proton services, Proton Sheets can be used for free. All you need is a Proton Drive account. With the release of Proton Sheets, Proton now offers a more complete set of alternative services for those who want to distance themselves from Big Tech companies like Microsoft and Google. Those include Proton Mail, Drive, Docs, Sheets, and more.

You can learn more about Proton Sheets in the official announcement blog post.

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Posted Friday 5 December 2025 at 3:46 am AEST (my time).

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