You can print the merged documents or modify them individually. You can print or change all or just a subset of the documents.
What do you want to do?
Change individual copies of the document
On the Mailings tab, in the Finish group, click Finish & Merge, and then click Edit Individual Documents.
Choose whether you want to edit the whole set of documents, only the copy that's currently visible, or a subset of the set that you specify by record number. Word saves the copies that you want to edit to a single file, with a page break between each copy of the document.
Print the merged documents
On the Mailings tab, in the Finish group, click Finish & Merge, and then click Print Documents.
Choose whether to print the whole set of documents, only the copy that's currently visible, or a subset of the set that you specify by record number.
Save the main document
Remember that merged documents that you save are separate from the main document. It's a good idea to save the main document itself if you plan to use it for another mail merge.
When you save the main document, you also save its connection to the data file. The next time that you open the main document, you are prompted to choose whether you want the information from the data file to be merged again into the main document.
If you click Yes, the document opens with information from the first record merged in.
If you click No, the connection between the main document and the data file is broken. The main document becomes a standard Word document. Fields are replaced with the unique information from the first record.