title: How can I get selected area in angular material table?
body: <p>I want to allow the users to select the area in angular table like excel sheets. Something like in the below image</p>
  <p><a href="https://i.stack.imgur.com/CEGJk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CEGJk.png" alt="enter image description here" /></a></p>
  <p>I have achieved multi selection rows on click.</p>
  <p><a href="https://stackblitz.com/edit/angular-row-select?file=app%2Ftable-selection-example.html" rel="nofollow noreferrer">Stackblitz | multi selection rows</a></p>
  <p>I am  not sure how to proceed.</p>
  <p>I found some similar plugins but not sure how to achieve that in Angular</p>
  <ol>
  <li><a href="https://www.jqueryscript.net/demo/Excel-style-Table-Cell-Selector-Plugin-With-jQuery-TableCellsSelection/" rel="nofollow noreferrer">Excel-style Table Cell Selector Plugin With jQuery - TableCellsSelection</a></li>
  <li><a href="https://ckeditor.com/docs/ckeditor4/latest/examples/table.html#!/guide/dev_table" rel="nofollow noreferrer">Table Selection | CKEditor.com</a></li>
  </ol>
  <p>Any help , suggestion is appreciated</p>