title: Why my .ts file get saved as MPEG2 TS format when i want it to be saved as typescript
body: <p>I'm new to the development, currently working on Angular 2 I came across a problem while saving the .ts (typescript) file in my computer (Win 7).
  I have run the commands using npm:</p>
  
  <pre><code>&gt;npm install typescript
  </code></pre>
  
  <p>but when I try to save the text file to .ts file it creates MPEG 2 TS file.
  How to resolve this problem. Please help!</p>