Knowledge(and tools) should be shared with everyone, this is the only way to keep the community alive.
Share your tool here in the topic, not by PM. A lot of people want to translate this game, and you certainly will receive the proper credits.
To translate Yakuza 0, you need these tools:
This tool will patch the .exe to allow extended ASCII characters and will add enough space at the end of the file to store the translated text.
Also, in this folder, there is a file named "hd2_hankaku.dds". This is the font used in the game and you need to replace it in the file font.par with the tool #2.
This tool is based on Gibbed tool: https://github.com/gibbed/Gibbed.Yakuza0
The game files are packed inside .par files and you need this tool to unpack and repack them.
To unpack, just drop the .par file on ParTools.exe, and to repack drop the .unpack folder created.
This tool can read the text files in the game and shows it in a grid to translate the strings. There are hundreds of files with text (almost all of them are inside "auth_w6_e", "bootpar", and "wdr_par_c")
To translate files, you need to create a New Translation ("Archivo - Nueva Traduccion") and select the files you want to translate (my advise is to create a translation for each game folder).
To generate the translated files, you have to select "Archivo - Exportar Traducción".
Whit this app, you can also export the texts to excel.