first check the selectors for second element of row which are on web by just selecting one of them according to that u will increment that row no by selecting row and column attributes.
So if you want to check is there data available or not then use get text and then by using if condition check is it null or not . As per requirement use find element and Highlight.
Look without knowing the webpage and their selectors i cant give you entire solution .
Hope it will help.