Date calculation with working days only
I'm trying to find a formula that would add a certain amount of days to a "starting date" but only taking into account the working days of the week (Monday-Friday). I've tried already with a very old post but it's not working properly (Calculating Due date for X number of working days ).
Exemple : add 4 days to today's date (Friday the 11 of September). Answer should be, Thursday the 17 of September.
Thanks in advance for your help.