You can convert an extended public key from any version to a different version by changing the "version bytes" but this is hard to do if you aren't an experienced developer. This tool makes it simple for anyone to convert between different versions.
Groestlcoin users may find this tool helpful if they are trying to import watch-only wallets into software that expects a specific version of extended public key with regard to the paths used for key derivation.
• Mainnet support for xpub, ypub, Ypub, zpub and Zpub
• Testnet support for tpub, upub, Upub, vpub and Vpub
Live version available at https://www.groestlcoin.org/xpub-converter/ But it is recommended to download Groestlcoin Extended Public Key Converter offline and run it on your pc. Open index.html to get started.
This application is licensed under MIT. There is no warranty and no party shall be made liable to you for damages. If you lose coins due to this app, no compensation will be given. Use this app solely at your own risk.
Source code: https://github.com/Groestlcoin/xpub-converter