🎓⏳📅 Calculate retirement age using nested IF, OR, and DATEDIF functions in Excel! 💡💻 In Excel, you can use a combination of nested IF statements, the OR function, and the DATEDIF function to calculate retirement age based on conditions. By evaluating the date of birth and the number of years employed, you can determine whether an individual is already retired or calculate the remaining years until retirement. 🎓⏳📅 Remember to adjust the age thresholds (60 and 35 in the example formula) to f