Question: how to calculate date based on number of weeks in excel?
Answer: DATE(A2, 1, -2) - WEEKDAY(DATE(A2, 1, 3)) - calculates the date of the last Monday in the previous year.
B2 * 7 - adds the number of weeks multiplied by 7 (the number of days in a week) to get the Monday (start date) of the week in question.