Help Exp scale - Classic files

[littlejo]

Hello there guys, preparing a server, did a lot of work on it, now checking the exp/sp and I realized that some lvls are weird (39 to 40 needs 1.2m exp, 40 to 41 needs 376k exp, also this is for 50, 60 etc). I tried to change the exp scale from files but ain't working, any idea someone? Thanks in advance

[Acacia]

what source r u using ?