Mail merge
How do you merge contact data for printing envelopes? It used to be possible with a now obsolete version of Pages.
MacBook Pro 15″, macOS 10.15
Question marked as
Although a programmatic approach was shown in this community in 2021, it might actually be simpler to import a CSV of addresses into the Contacts application, as a custom Contact Group. Then with all entries selected in that group, you can then choose in the Contacts print panel to do labels using a specific Avery label that you can select there.