Can’t add holiday calendar to shared calendar

[Bldnuidm mufk]

Hi! So we have a shared calendar with our staff where we put all of our meetings. I was given a task to add all Canadian holidays into that shared calendar. I downloaded canada holiday calendar to my calendar but when I view the calendar in a list format and click move to, it doesn’t give me an option of the shared calendar. And I wasn’t able to download holidays to shared calendar directly. So how can I move or copy canada holidays to our shared calendar? Thanks SOO much in advance