I'm assuming this is Texas Hold'em. In Texas Hold'em, you play the best 5-card hand you can, regardless of whether those cards come from your hole cards or the community (board) cards. That means a player could make a hand with any of these combinations:
3 community cards + 2 hole cards
4 community cards + 1 hole card
5 community cards + no hole cards
Contains a list of all 7,462 equivalence classes. If you want all 2+ million distinct hands instead, it would be quicker to write a program to generate them than it would be to download an already made list.
Using that list as a lookup table to evaluate hands wouldn't be very efficient; you'd either have to pre-sort the ...