Build a Desktop C# Application for webscrapping Particular sections of a Given Website

Build a Desktop C# Application for webscrapping Particular sections of a GIven Website's Content, with the web content to be organized by dates, saved in .txt ie notepad, or .csv files Excel files, downloaded from the app once the webscrapping task is finished. Use C# to build a Desktop Application for webscrapping, and with several organized categories of information, depending on what is the tab on the website's particular section whose content and data are scraped. Also include a date index so the content scraped is organised by dates in descending or ascending order. If necessary, can zoom in on info from the site pertaining to a particular date. The C# source codes must be fully left un-encrypted when delivered to client, so we can modify the codes and amend statements here and there as and when needed, ie to prevent rigidity in the work product delivered to us. Terms of our cooperation as follows: i. No upfront partial nor full release of milestones. ii. Milestones are first created as 50% in escrow, and only when developer shows he has results achieved by a demo on his PC or desktop (ie when we go in by Teamviewer or Anydesk to his PC to see that he achieved results), would another 50% milestone in escrow created. Both 50% milestones are not released until project is completed and delivered in full to client. Because we are paying for a product that works, not for a "gambling" attitude by certain developers. Last point: To Note there are Tabs at bottom of page for certain pages too on the website, to get to progressively or earlier dates. Say, an example tab: U.S. Stock Analyst Ratings for 5/1/2019] [login to view URL] So, if you scroll to the bottom of the page, you see other dates apart from 2019 May 1. You can even scroll to Previous Week, and the previous week of Previous Week. And this is what I mean by being progressively going back to recursively earlier dates, in going back to successively earlier periods. Please take note to scrape earlier dates' web content too, under their particular sections on the website, and not just the latest information. Have provided A Screenshot from [login to view URL]: On An EXAMPLE of a Tab HERE to reach recursively Earlier Dates and scrape their web content. Please download that screenshot to take a look.