Depending on where you heard about it, "FIFA.txt" usually refers to one of three things:
Since these files are usually user-generated, you can find the most recent versions on these community hubs: Download FIFA txt
: Historically, "read me" text files included with digital downloads often contained installation instructions or product keys (though these are less common with modern DRM like EA App or Steam). Common Locations to Find Community Files Depending on where you heard about it, "FIFA