Siva wrote:

In addition to my mailbox, I also have a public mailbox (for shared
project emails) and I have owner permission to this. This has a
working calendar. I can view and edit items in it.
I now have a csv export of a 3rd party outlook calendar, that I would
like to import into this public mailbox calendar. When I tried to
import this I don't see the public mailbox calendar as one of the
destinations. I only see my own mailbox calendar.
Is there anyway to import calendar export into a public mailbox
calendar?

There's no way to import a CSV into a public folder. Instead, create a new
calendar folder for yourself, import the CSV into that, then move all the
data from your extra calendar to the public one. Delete the extra one when
you're finished.
--
Brian Tillman [MVP-Outlook]