Instead of searching for a single .rar file that might be outdated, most users use the "JSON Pack." When placed in your Fightcade folder, these scripts automatically download the correct ROM whenever you join a game lobby.
Extract the contents of the downloaded .zip or .rar file into this emulator directory. Download FC2 1101 rar
If you are looking for the file, it typically refers to a JSON configuration pack used for Fightcade 2 to automate ROM downloads. How to Get the Auto-Downloader Instead of searching for a single