Add Slide Footers

• Footer text can give your slides a professional look and
  make it easier for your audience to follow your presentation
• You can review footer information that you apply to the slides
  in the PowerPoint views and when you print the slides

1. Open the file PPT2 from the last page
2. Click Insert tab / Header & Footer button.
   
3. Save the file and go to "Set Transitions and Timings."