I believe Seuntjie's bot has an in-build verifier, so TBH you wouldn't even need to use another verifier. (not sure if Seuntjie's bot automatically verifies it though?)
Verifying the results is mostly 2 steps:
1. Check if the serverseed HASH is the same compared to the one the verifier generates. This should automatically make a
green or
red (if wrong) message above the bet results. So this step is pretty easy.
2. Check if the rolls are actually the same as the rolls that you had. This you will have to do manually by simply comparing them with your roll results (for you: excel data.) If you already see a list of bet results, I assume the first roll listed on my site is the last bet you made (and next is second last, etc.)
So I guess understanding the "nonce" idea is important here (also for
jamyr 
) If you make a bet with a new set of seeds, the nonce starts at either 0 or 1 (depends on which site.) After that, the nonce goes up by 1 after each bet. So if you made 7,983 bets with those seeds and you want to check the last 100 bets, you will probably fill in "7983" as "Last nonce" and then "7883" as Starting nonce. I cannot "guess" how many bets you made, because like Lutpin said, it could be an huge unlimited amount of bets :p So you will have to fill this in manually.
Normally you can easily see the "last nonce" when you go to "My bets" on a site and click on your last bet that you made with that set of seeds and look for "nonce". Or sometimes the site shows it when you generate a new serverseed. Or it might be in that excel data Seuntjie generates.
can you do a video tutorial? I'm still not quite understanding how to check my rolls. What exactly do I do with the generated roll list from your verifier?