1. Find a recent report in Documents\My Sims Documents\*Name* where name is your name. 
  2. Right-click to access the context menu.
  3. Mouse to Open With, and another menu will appear.
  4. Select Choose Another App, as shown here:



  5. Make sure the tick box at the bottom saying "Always use this app to open .xml files" is selected, as below:



  6. Click on Word 2016 above and click OK.

    This should now associate the .xml file type with Word and your reports will now open and display properly.