FormulaBrief

Privacy boundary / updated October 3, 2026

Privacy, capability, and trademark boundaries

This page states what leaves the browser, what analytics can see, and what FormulaBrief cannot verify.

Explain My Formula Locally

DATA PATH

What happens to a formula task

FormulaBrief provides static tutorials and a local formula explainer. The former formula generation service has been retired and no longer calls a model.

When you explain a formula, parsing runs in your browser. The pasted formula is not sent to a generation endpoint or stored by FormulaBrief.

Do not enter confidential workbook data, credentials, personal data, or trade secrets. The explainer accepts one formula, not a file.

MEASUREMENT

Analytics and session replay

Cloudflare Web Analytics provides basic page-view counts used as the traffic denominator. FormulaBrief first offers Clarity after a formula task completes; Clarity loads only after you choose “Allow masked replay.” Advertising storage remains denied.

The workbench input and output region is masked. FormulaBrief sends only fixed event names and low-cardinality labels such as task mode. It does not send prompt text, formulas, results, email addresses, cell references, or workbook names as analytics properties.

You can decline Clarity without losing access to the tool. “Privacy settings” in the footer lets you change or withdraw the choice; withdrawal clears Clarity cookies and ends its current session. The browser stores only your analytics choice and a local task count used to measure repeat use.

PROCESSING

Local processing boundary

Local explanations have no model quota. The retired generation endpoint does not process submitted tasks. Cloudflare may process standard network metadata while delivering the site.

CAPABILITY

What FormulaBrief cannot know

FormulaBrief cannot inspect cell values, named ranges, workbook structure, locale separators, data types, add-ins, or the user's Excel version. Tutorial formulas may need reference changes and must be tested on a copy of the workbook.

External-resource and executable functions are blocked by this probe. No macro, VBA, DDE, workbook upload, batch processing, or full Google Sheets compatibility is provided.

TRADEMARK

Independent compatibility description

Microsoft Excel is a trademark of the Microsoft group of companies. FormulaBrief uses the name only to describe intended formula compatibility. FormulaBrief is not affiliated with, sponsored by, or endorsed by Microsoft.