Utilities can be used to decrypt/encrypt localization files for Black Desert Online
BDO_decrypt \<encrypted file> \<output file>
BDO_encrypt \<decrypted file> \<output file>
WARNING! Output file will be overwritten without asking.
Example of use:
Decrypt localization file:
bdo_decrypt.exe ads\languagedata_en.loc languagedata_en.txt
Do some stuff with that file (modify some texts)
Encrypt it back to the original location:
bdo_encrypt.exe languagedata_en.txt ads\languagedata_en.loc