Hi Guys! I'm help for you to translation game!
This tool is required: https://github.com/lysannschlegel/RDAExplorer
RDA Explore for see files in .rda.
Tool Support game: Anno 2070, Anno 2205, Anno 1800.
you Find Text in rda10.rda file.
You open this file whit explorer and data/config/gui (File - Open (read only)
You see lang files. Right click export English text. You edited File whit notepad link: https://notepad-plus-plus.org/downloads/
How to import? Let's go.
You open original file and let's go data/config/gui and remove english. Click gui add files and you add edited english text.
File - save as 2.2 Version 2205. and you save file name rda10.rda file. Everything you did well will go.
I upload sample phohto for working method.