You can create labels in Microsoft Word by running a mail merge and using data in Excel. This is typically used to generate and print bulk mailing labels for names and addresses of clients or other contacts. You’ll need to create a main document for the labels in Word and then connect to a data set or list in an Excel worksheet (although you can use other data sources). When you run the mail merge, you can create a new merged file with a label for each contact or merge directly to a printer.