How to mail merge and change font size and date in word?

linda118 In the first cell of the table in the Labels mail merge main document, apply the desired font formatting to the mergefields and the text.  To get the date in the desired format, toggle on the display of the field codes and inside the closing } for the Date mergefield, at the following formatting switch \@ "MMMM yyyy"

{ MERGEFIELD Date \@ "MMMM yyyy" }

If the date is not a mergefield, just apply that switch to the Date field

{ DATE \@ "MMMM yyyy" }

Then use the Update Labels button in the Write & Insert Fields section of the Mailings tab of the ribbon to replicate that formatting to the other labels on the page.

To see the result before you print the labels, select Edit Individual Documents from the Finish & Merge dropdown in the Finish section of the Mailings tab of the ribbon.