Dates

The last day is a date, not a description

Most disputes after a resignation are not about the decision but about two days in the calendar.

Where the period comes from

Notice lives in your contract or the company's policy, not in the letter. The letter records the date, and that is exactly its value.

When they ask you to leave earlier

It happens that an employer wants to end things before notice runs out. A written agreement on the new date beats a verbal understanding, and it attaches to the letter.

The sheet does not replace the contract

The template tidies the document, but your rights and periods come from the contract and the law that applies. If there is a dispute, the reference is there, not here.