Hello ozasaurus, and Welcome to Seven Forums.
I see you asked the same question before and never got a reply.
Can I create office lunch calendar everyone can add to & subscribe to?
I think that's because nobody that has read your question knows the answer, not that you are being ignored.
It sounds like this is for a Business/Corporate environment.
If so, is there an IT Department, Administrator(s), 24x7 Email Server(s), ... ?
Are you trying to create a public calendar on your Local PC using Local Outlook, at work?