LIMITING THE NUMBER OF POST/EXCERPT WORDS

Hi Support Team,

I am trying to limit the number of shown post words on Front Page here: https://www.screencast.com/t/1HuOyBHswn7T but it seems that the given command does not work i.e. whatever number I put it shows the whole excerpt (if I choose excerpt), or the whole post (if I choose post).

Could you please help? What and where am I doing wrong?

P.S. Sorry for the Cyrillic letters in the screenshot :slight_smile:

Tnx,
Vladimir