Easy Steps to Create Word Mailing Labels from an Excel List The most common address label to use is a 5160 label size. Step 3: Create the Word file, Complete Merge and Print In Word, go to Mailings...Start Mail Merge...Labels... In the dialog box, choose the labels you will use (the most common is 5160) and click OK. You will now see on your Word screen, a layout of all the labels, empty.