A family of Microsoft word processing software products for creating web, email, and print documents.
Open the Word document in Word and the Excel workbook in Excel.
Minimize all other programs.
Right-click an empty part of the Windows taskbar.
Select "Show windows side by side" from the context menu.
If you want to restore the original window positions, select "Undo Show side by side" from the context menu.
This works with all types of application, not just Word and Excel.