Simple terms.
Clear expectations.

Effective October 7, 2026. These terms describe use of the SheetSpeed development preview and this website. Questions can be sent to jarvis@agi-jarvis.com.

Development status

SheetSpeed is under active development. Features, shortcuts and Google integrations can change. Complete parity with SheetWhiz, full Macabacus command coverage and compatibility with a particular employer’s systems have not been established.

Use within your authority

Use SheetSpeed only with documents, accounts and systems you are authorized to access. Follow your organization’s software, data-sharing and AI policies. Do not use the extension to bypass browser, identity or security controls.

Check changes to your documents

Review the affected range and the result of any command. Test development builds on copies before using important workbooks. Native commands generally use Google’s Undo; supported API changes use SheetSpeed’s separate undo records. Not every action has a universal rollback.

Modeling and recovery

Modeling tools temporarily change numeric inputs and request recalculation. Use isolated copies without concurrent editors. Browser closure, revoked access or network failures can postpone restoration. Resolve pending recovery before removing the extension or its local data.

AI and third-party services

AI output can be wrong. Review answers and proposed changes before relying on them. Google, Chrome and any separately configured AI provider operate under their own terms and policies. SheetSpeed is not endorsed by Google, SheetWhiz, Macabacus or Coinbase.

Availability and support

The development preview is provided without a service-level commitment or a guarantee of uninterrupted or error-free operation. No purchase or paid subscription is offered through this website. These terms do not limit rights that cannot legally be excluded.

Privacy

The Privacy notice explains what the extension reads, what it stores and when information is sent to Google or an optional AI provider.