Bip39 Word List Excel Regardless that it works by using BIP32 method it is possible to even now import BIP39 seeds into Electrum wallet. Also other than BIp32 There's BIP44 Variation which some wallet use for that era of seeds. You'll be able to see the entire source code in https://ez-bookmarking.com/story18710805/seed-phrase-generator-with-balance-free-everything-about-bip39-phrase