Working with Envelopes and Labels in MS Word - GeeksforGeeks Step 1: Go to the Mailings bar and select the Envelopes bar under the Create bar. Step 2: A dialog box will appear. Step 3: Provide the details such as the Delivery address, Return address, etc., and then click on the Add to Document button below. Step 4: An Envelope will get inserted into the MS Word document. Labels