Cleanroom your file stays on this computer

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Privacy

Your file stays on this computer. This page lists what the site does record. When that changes, this page changes and the date at the bottom moves.

Your files

There's no upload button here, because there's nowhere to send your file. Each tool runs inside the page you open, like a calculator on a web page.

How this works, and how to check it →

Accounts

The free tools and direct spreadsheet downloads need no account or email address.

Cookies

The site sets no cookies and uses no local storage for tracking. There's no cookie banner, because there's nothing to agree to.

What this site records

There's no analytics script on this site. Nothing is added to the page, no cookies are set and nothing follows you between sites.

We look at page-view counts by country, from the records the host keeps in order to serve the page. Nothing is linked to a person, and none of it includes a file you opened in a tool.

If you know what a Content-Security-Policy is

Every page here is served with a Content-Security-Policy that includes connect-src 'none'. It blocks connections such as fetch, XHR, WebSockets and tracking beacons. Other directives separately control scripts, images and fonts.

The policy doesn't stop you following a normal link to another website.

Hosting

The site is served by Cloudflare. To deliver a page it handles your connection, which includes your IP address and browser type. That covers the page you asked for. It never includes a file you opened in a tool.

Third parties

No advertising networks, no trackers, no scripts from other companies and no fonts from someone else's domain. Everything the page needs comes from this site.

A product checkout link, when available, takes you to Payhip, and Stripe processes the card payment. They handle purchase details under their own terms and privacy policies. The files you open in a tool never go to either of them.

When you buy, Payhip passes us the email address you used, so we can help with your order.

Payments go through Payhip and our own Stripe account. In those accounts we can see any name you enter, and your card's type, country, expiry date and last four digits. We never see the full card number.

Downloaded workbooks

The finance workbooks contain no macros or external data connections. Cleanroom doesn't receive the records you enter. If you save a workbook in OneDrive, Google Drive or another cloud service, that provider handles the file under its own terms.

Contact

Questions about the site, the tools or a purchase: email support@cleanroomfiles.com.

If you email us to hear when the workbook is on sale, we use your address for that one email and then delete it.

Last updated: 11 October 2026.