Add Business Days BUT excluding holidays and sundays only like workdays

Add Business Days BUT excluding holidays and sundays only like workdays

Hi!
Please, your help with the following:

Please, use the example bellow to understand my idea:

Initial_Date: '20-12-2019';

"Add" 32 "business days" to "Initial_Date", but with the following criterias:

- 1st:   Considering like workdays from Monday to Saturday.
- 2nd: Considering the following Holiday list:     Holidays = {'25-12-2019', '01-01-2020'; '15-02-2020'};

My problem is that the function "addBusinessDays()" do not permit both to exclude holidays like other functions (i.e. workdays) but to work considering only sunday like not working days.

Please your help!!!!!

Thanks a lot in advance.