Word 2016, 2013 and 2010 have a feature that can be used to merge more than one word documents. Listed below are the steps for merging two word documents.
Step 1: Launch the master word document then place the cursor where you want to insert another document.
Step 2: Now click the Insert menu and navigate to the Text section. Click the arrow pointing downwards next Object menu option and select Text from File option from the drop down list.
Step 3: This should display the following Insert File dialog box.
Click the Insert button after selecting the word document that needs to be merged. The content of the selected document will be added to the master document. You can repeat this task to merge more than one Word documents.