Importing anki on mac os

Anki Desktop
1

I downloaded a file with 5000 flashcards for MAC OS MOJAVE 10.14.6 and the system pops-up a message saying there is no app to open it.
In theory it should be opened by Anki App, I would guess.
I would appreciate some help.

2

https://faqs.ankiweb.net/ankiapp-is-not-part-of-the-anki-ecosystem.html

3

Thank you so much!