Proton Sheets adds fully encrypted, collaborative spreadsheets to Proton Drive as the service expands its workspace tools.

Proton Sheets is available to anyone with a Proton Drive account for free. It’s protected by end-to-end encryption to ensure ...

Five hidden Excel rules show helper columns, LET, and LAMBDA in action, cutting errors and making updates quick for any ...

Before it took over her life, Leila Gharani mostly took Microsoft Excel for granted. She was working on a process optimization project for a large paper-products manufacturer—a job that, to hear her ...

Proton started as just an email provider, but it has slowly built up an ecosystem of privacy-first web services. That ...