Well well, this is one of the most useful plugin on chrome store if you do anything with tables in any chromium based browser or other browsers. So what dies it do. Lets say you went to a wiki page on GDP and there is a list of countries with the date, table capture in a click of a button will capture the entire table (even those that has scrolling), keep the format intact that you can export in excel or sheets. Its an amazing solution, no more copy pasting, missing formats and getting frustrated. You do or plan to do anything with tables, GET IT.