Why doesn't mac os hi Sierra remember the default video app?

Question

macOS

I right-click on the video file, hold ALT, select "always open in the program" in the menu and select the VLK application, but the choice is not saved and the next time QuickTime opens again. How to cure it?

Answer 1

this method only works for a specific file.
the application is set differently by default - iphonegeek.me/instructions/dlya-chajnikov/1040-kak...

Answer 2

Click Choose a program and in the window that appears, select the desired application by checking the box Always open in