How to merge Word documents
If you have to combine separate Microsoft Word documents, you can copy and paste them together if they're short, or merge them if they're long.
Note
The format might not stay the same when you merge documents.
Select the Insert tab.
Select Object, and then select Text from File from the drop-down menu.
Select the files to be merged into the current document. Press and hold Ctrl to select more than one document.
Note
Documents will be merged in the order in which they appear in the file list. To use a different order, select and insert each file individually in the desired order.
For more information, see the Forum.