How to mail merge labels from excel to word office 2010 HOW TO MAIL MERGE LABELS FROM EXCEL TO WORD OFFICE 2010 CODE; HOW TO MAIL MERGE LABELS FROM EXCEL TO WORD OFFICE 2010 PLUS; You shouldn't see any change in the document. For this example, we'll make a letter, but you can use this process for any kind of document. Click the "Mailings" tab in the ribbon and then click "Start Mail Merge." In the ...