I'll call this bull shit.
Is it impossible? No. But it is almost impossible which means it is practically impossible.
Everybody can create an excel sheet and put random winning bets in it. It is not that hard.
You have a point I hope OP is not taking us for a ride, he should provide more details like a screenshot of his winnings and deposit screenshots spreadsheets is easy to create he can put anything on it, if what's on a spreadsheet is real then he should back it with solid proof, I hate it when newbies coming here bragging without showing us proof or details on how he wins and how much he wins.