If the Audio folder does not exist, create it manually. Copy all the extracted commentary_ar_* and data_commentary_ar_* files into the FIFA 19\Data\Audio folder.

A: Yes. Simply go to Audio Settings in-game and change the Commentary Language back to English.

A: If you own a legitimate copy of FIFA 19, downloading commentary files from third parties exists in a grey area. EA does not ban users for commentary mods, as they are just audio files.