According to Microsoft’s support document, it was intended for “creating professionally branded templates, printing envelopes and labels, and producing customized calendars, business cards ...

You can do a mail merge in Microsoft Word and Excel to create personalized documents for many recipients at once. You can import an Excel data table into Word to customize your template with names ...

You can print labels from Microsoft Word by using the Mailings tab. The Labels dialog box has hundreds of label templates to choose from, organized by brand. You can customize the label template ...