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Terms of Service

Last updated 13 November 2026

These terms are an agreement between Dollani, LLC ("ExcelStreak", "we") and you, for using excelstreak.com: the lessons, your account, the blog and the function reference. By using the site, or by creating an account, you accept them. If you do not accept them, do not use ExcelStreak. How we handle personal data is set out in our Privacy Policy.

What ExcelStreak is

ExcelStreak teaches Excel through exercises. You type a formula into a practice spreadsheet in your browser, and we check it by working out what it gives, on the exercise's data and on changed data. The blog and the function reference explain Excel's functions.

Answers are checked by our own spreadsheet engine, not by Microsoft Excel. It works out formulas the way Excel does, but in rare cases it can accept or reject a formula that Excel would treat differently.

Your account

You can practise the first module without an account. To save your progress, or to get Pro, you need an account. Creating one is free, and our sign-in provider, Clerk, runs it for us.

You must be at least 14 to use ExcelStreak. To buy a plan you must be at least 18 and able to enter a binding contract. Younger learners can use the free lessons, or Pro through a team plan that someone else pays for.

An account is for one person. Keep your sign-in details safe and do not share them. You are responsible for what happens under your account. Tell us at hello@excelstreak.com if you think someone else has used it.

The free lessons and Pro

Every exercise in the first module is free, for everyone, with or without an account.

Pro opens every exercise in every other module. You get it from a personal Pro plan, or from a team plan while you belong to that team.

Paying, renewing and cancelling

Plans and their prices are shown on the pricing page and when you subscribe. Plans are sold through Clerk Billing, and card payments are handled by Stripe. We never see your card number.

A paid plan renews automatically at the end of each billing period, and the card you saved is charged for the next one, until you cancel.

You can cancel at any time: a personal plan from your account page, a team plan from the team’s page. You keep Pro until the end of the period you paid for. The plan is not renewed after that.

When Pro ends, the modules after the first lock again. Your account, your progress and your certificate stay, so if you go Pro again you carry on where you left off.

If a payment fails, Pro may stop until it is paid.

Refunds

Payments are not refunded, in full or in part, except where the law requires a refund.

Teams

A team, such as a company or a class, has one plan for everyone in it, billed per seat. The team’s admins invite and remove members and manage its plan and billing. Whoever runs a team is responsible for the people they invite and for paying for its seats.

Each member gets Pro while they belong to the team, when they are working in it (they choose the team on the team page). A member who leaves, or is removed, keeps their own account and progress but no longer gets Pro from the team.

Admins and members can see each other’s name and email address in the member list, but not each other’s progress.

Certificates

ExcelStreak gives one certificate for the whole course, "Excel for work". You earn it by solving every exercise in every module and then passing the timed final test with 80% or more.

The final test is open to Pro learners who have solved every exercise. It has 15 exercises that are not in the lessons, and 45 minutes for all of them, counted by our server. Your answers are checked after you hand in, by the same engine as the lessons. If you do not pass, you can take a new test 24 hours later. A new test is drawn, in each module, from the exercises you have had least. There are 27 in all, so your second test repeats some you have had, and any later test only ones you have had. Once you have a certificate, there is no further test.

A test you have started can be finished, and a pass still gives you the certificate, if your Pro plan ends during it.

A certificate shows that the account it was issued to solved the exercises and passed the test on ExcelStreak. It does not show who that person is: the name on it is the one you type in, and we do not check it. It is not a qualification from Microsoft, or from any school or exam board.

A certificate stays as it was issued: its name and score never change, and there is one per account, so a link you have shared shows the same thing until the certificate is removed.

Each certificate has a public page, at an address like excelstreak.com/certificates/…, so anyone you give the link to, such as an employer, can check it. Deleting your account removes your certificate and its page. To have it removed and keep your account, write to hello@excelstreak.com.

What you may not do

When you use ExcelStreak, you must not:

  • share, publish or sell the exercises, their solutions or their hints, or let anyone else use your account;
  • copy the site’s content in bulk, by hand or with a scraper, bot or other automated tool;
  • use a script or bot to send answers to be checked, or try to overload the checking (it checks at most 60 answers a minute for each account);
  • try to get around the lock on Pro exercises, the limits, or the security of the site or of the services it relies on;
  • put someone else’s name on your certificate, or earn one with someone else’s work;
  • use the site to break the law, or to harm, harass or mislead anyone.

Suspending or closing an account

We may suspend or close an account that breaks these terms, puts the site or its users at risk, or is not paid. Where we can, we will tell you first and give you the chance to fix it.

You can stop using the site and delete your account at any time from your account page. What happens to your data then is set out in the Privacy Policy.

Deleting an account, whether you or we do it, deletes its progress, its final tests and its certificate for good, as the Privacy Policy sets out.

Our content

The exercises, their solutions and hints, the lessons, the blog, the function reference, and the ExcelStreak name and logo belong to us or to those who license them to us. You may use them to learn, for yourself or, on a team plan, for your team. You may not copy, republish, sell or share them, or use them to build another course, without our written permission.

The formulas you write are yours. You let us store and check them to run the site, as the Privacy Policy describes.

If you send us feedback or ideas, we may use them without owing you anything.

Microsoft and Excel

Microsoft and Excel are trademarks of Microsoft Corporation. ExcelStreak is not affiliated with Microsoft, and Microsoft does not endorse or sponsor it.

No warranty

ExcelStreak is provided "as is". We work to keep it available and correct, but we do not promise that it will always be available, that it is free of errors, or that every answer will be checked the way Excel would check it.

We may add, change or remove lessons and features.

The lessons teach Excel. They are not financial, accounting or other professional advice.

Limitation of liability

To the extent the law allows, we are not liable for indirect or consequential loss, or for lost profit or lost data, and our total liability for any claim is limited to the amount you paid us in the 12 months before it.

Nothing in these terms limits a liability that the law does not allow to be limited, or takes away a right you have as a consumer where you live.

Changes to these terms

We may change these terms. The date at the top shows the last change. If a change is significant, we will tell account holders by email before it takes effect. If you keep using ExcelStreak after that, the new terms apply.

Governing law and disputes

These terms are governed by the laws of the State of Delaware. Before starting a formal dispute, please write to hello@excelstreak.com so we can try to settle it within 30 days. If we cannot, it will be heard by the courts of the State of Delaware, unless the law where you live gives you the right to bring it there.

General

These terms and the Privacy Policy are the whole agreement between you and us about ExcelStreak. If part of them cannot be enforced, the rest still applies. If we do not enforce a right straight away, we have not given it up. We may transfer these terms to a buyer or successor if the site is ever sold.

Contact

ExcelStreak, Dollani, LLC, 262 Chapman Road, Suite 240, Newark, DE 19702, United States. Email: hello@excelstreak.com.

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