Common, using backticks or fenced code blocks isn’t that hard. I had to “edit” your post with moderator rights to be able to see your html code. Double posting the same html doesn’t help either.
Translation for other readers: @dipakmali1993 clicked on the link “Export Data” in entries view and posted the html source code of that link - which of course is displayed as html.
I won’t explain, how to use Excel. There are other forums and manuals around.
How the database system works:
How to export as xls/xlsx/ods/csv:
Again: This was the first search result for “export excel” 
To be fair - searching for “export csv” doesn’t list that thread for some reason…
PS: You leaked the mail address of your colleague in your screenshot.