Mail Merge help

*Please bear with me, I'm new to Mac. I've been a devout PC user but had to switch for work.*

So I have a spreadsheet in Numbers (of names, addresses, etc.) and need to perform a mail merge in Pages (where my label template is) to create an individual malling label for each person on the spreadsheet. But for the life of me I cannot figure out how to merge the Numbers doc to the Pages label template I created.

PLEASE HELP. Thank you!