Howtogeek posted a beginner guide about using Templates in MS Office 2010 and 2007

Sometimes your boss might want you to create a spreadsheet or PowerPoint presentation and it's on a deadline. This is where Templates in Office apps can be your best friend. The process is relatively simple, but finding a Template that works with what the boss wants might be the hardest part. The good thing there are several available for almost any situation you need.

  Beginner: Using Templates in MS Office 2010 and 2007