Your iPhone is not your friend when you want to copy off all your contacts, but there are ways to get that data from iOS and into the more universal comma separated values format.

Export contact cards from the Contacts app, vCards from iCloud, or use third-party apps to share via Excel or CSV This article explains how to export contacts from iPhone using the Contacts app ...

To export your iPhone contacts to an Excel spreadsheet, you should first sync your contacts with iCloud. Here's what you need to know.