Hi Iwan86
For example, when changing to Russian instead of Czech.
[Text Language Cesky to Russian]
1. Open the "game property" of FIFA 18 in Origin.
2. Select "Cesky" for "Game Language" in "Advanced Launch Options".
3. Save your changes.
4. Back up FIFA 18.exe
5. Open "FIFA 18. exe" with Hex editor.
6. Text type "cs_CZ" Search and edit to "ru_RU".
7. Text type "cze,cz" Search and edit to "rus,ru".
8. Search "ru_RU" in another place different from the above "6" and edit it to "cs_CZ".
9. Save your changes.
[Commentary Language Russian]
10.Download the Russian commentary language file and place it.
https://drive.google.com/file/d/11cBb5yxDxQ-RM-zF6Q0-ELtIz5rmfmy8/view?usp=sharing
11.Start the game and change the commentary to Russian with the audio setting of the game setting.