To calculate the number of days between two dates using the DATEDIF function in Excel, follow these steps:
Start by typing your two dates in separate cells. For example, enter the start date in cell A1 and the end date in cell A2.
In another cell, enter the formula "=DATEDIF(A1, A2, "d")". This formula calculates the difference in days between the two dates.
Press Enter to get the result. The cell will now display the number of days between the two dates.