[header] How to merge documents in microsoft word [title] Open the word document you want to merge into. [step] To do so, double-click on the blue app that's shaped like or contains a ", " click on, click on, and select the document. [title] Click in the place where you want to insert the next document. 
[title] Click on insert in the menu bar. [title] Click on file...near the bottom of the drop-down.