title: Angular export Excel client side
body: <p>I'm using Angular v4, i guess how can I build an Excel spreadsheet starting from an object in a component. I need to download the Excel file on the click of a button and I have to do this client side. I have a json file composed of arrays and I need to transfer this on an excel file, possibly customizable in style. Is it possible? If yes, how?</p>
  
  <p>Edit:
  No js libraries please, need to do this with Typescript and Angular</p>