.PST with contacts converted to .CSV

I am starting a script to grab the contacts from Outlook for multiple users and uploading them to a Sharepoint list. To clarify a bit, these are personal contacts and not members of the GAL. I can get the contacts to a .PST file from Exchange which seems like the easiest way to go about this, but then haven’t been able to come up with a way to convert that .PST to a .CSV for upload. I haven’t been able to find a way to just export the contacts from Exchange to a .CSV.
Conversely, if I connect to Outlook, I can get them into a .CSV file, but that seems to rely on having Outlook open and the added complexity that most of our users work in a Citrix published desktop. Any thoughts or direction on this is greatly appreciated.