Diablo II monster info, among other things, is stored in .txt files. These .txt files generate .bin files which the game then reads.
Modders tend to remove the .txt files from their mods released to the public to avoid poeple stealing their work, and I think tsuru has done this as well with Eastern Sun. Which means we can't check the exp in the files, because all we'd find would be .bin files.
PlugY for Diablo II allows you to reset skills and stats, transfer items between characters in singleplayer, obtain all ladder runewords and do all Uberquests while offline. It is the only way to do all of the above. Please use it.
Supporting big shoulderpads and flashy armor since 2004.