Steps:

1. Contacts > Import Contacts
2. Click the help ? at the end of: "The Import Wizard.... them here."
3. Click the link on here at the end of: "If you need to import Multi-value Custom Data for contacts.... from here.

You should see the multi-record field to import

Steps:

1. Contacts > Import Contacts
2. Click the help ? at the end of: "The Import Wizard.... them here."
3. Click the link on here at the end of: "If you need to import Multi-value Custom Data for contacts.... from here: /civicrm/import/custom?reset=1 .

You should see the multi-record field to import