Mail merge is a tool in Microsoft Word that allows you to easily modify one part of a document with unique data elements.
How to Merge in Word, Excel, and Outlook
Mail merge works by attaching a database to your document. The database contains the unique elements (Sue, Jack, Peggy, etc.) and the document is your letter, invoice, label set, or other file.
Mail merge saves you time and effort by automating the process of entering a single piece of data into a document. For example, let’s say you want to write a holiday letter and send it to 20 people. You can write the letter and create a mail merge to print it with 20 different greetings (Dear Sue, Dear Jack, Dear Peggy, etc.).
You can use mail merge to create any type of printed document, as well as electronic documents. Here are some examples of document types:
