Help opening URL or index.html in IOS Simulator.app

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Need some help getting started with this workflow.

Essentially what I need is this:

 

[1] I'll be looking at a website in Chrome, and I would like to see how it will look on an Ipad or Iphone, via IOS Simulator.app (it comes with xcode).

 

[2] I have lots of local index.html files I'm working on.  I would like to open the selected file in IOS Simulator to se how it will look on an Ipad.

 

Can anyone, give me an outline of how to achieve these workflows, please?