Create and print mailing labels for an address list in Excel The mail merge process creates a sheet of mailing labels that you can print, and each label on the sheet contains an address from the list. To create and print the mailing labels, you must first prepare the worksheet data in Excel, and then use Word to configure, organize, review, and print the mailing labels. Here are some tips to prepare your data for a mail merge. Make sure: Column names in your spreadsheet match the field names you want to insert in your labels.