Terms of use

Last updated: 7 October 2026

By using Thoufedu you agree to the simple terms below.

The guides are for learning

Everything on this site is general teaching material. I check the formulas and the numbers in every example, but your data, your version of Excel or Power BI and your company rules may be different from mine. Test every formula on a copy of your file before you rely on it.

The examples use made-up shipments, items and amounts. They show how a method works. They are not real company data.

Not professional advice

The guides are not legal, financial, customs or banking advice. For example, a guide about checking documents does not replace the rules of your bank, your letter of credit or your company. Always follow those rules first.

No guarantee

I try to keep everything correct and up to date, but I cannot promise that it is free of mistakes or that it fits your situation. You use the site and the guides at your own risk. Software changes, and a button or menu may move after I wrote a guide. If you find a mistake, please tell me.

Links to other sites

Some pages link to other websites. I do not control them and I am not responsible for what they contain. Some of those links may be affiliate links, as explained in the affiliate disclosure.

Copyright

The text, images and diagrams on Thoufedu are mine, unless a page says otherwise. You may share a link to any guide and quote a short part of it with a link back. Please do not copy a whole guide or republish it elsewhere without asking me first.

Changes

I may update these terms. The date at the top shows when they last changed.