How to create or add notifications to the table?

Question

Spreadsheets

Good afternoon! Question of the following nature. I must say right away that I am not strong in programming.
There is an excel table in which there is a column with employees (workers, specialists, etc.) and several columns with the names of certifications (labor protection, industrial safety, various types of briefings, etc.). Opposite each employee in the columns with certifications are the dates of the next delivery (that is, the next certification or briefing). Actually, the question is whether it is possible somehow to make notifications in excel or in a completely different program, which, conditionally, 5-10 days before the next certification of an employee will either pop up or come by mail, in general, notify the manager of the need within the specified period get certified?

Answer 1

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