This area contains folders with additional languages (translations) for Find Any File. To use them, download the .zip file, then uncompress it so that you end up with a folder ending in ".lproj". Place this folder into FAF's AppSupport folder, which you can open from FAF's Help menu (since v2.3.2). Next time you restart FAF, it should then use the added language if you have it also set as the preferred language in System Preferences (aka System Settings). Note that the translations may be incomplete. They're provided by volunteers and are not actively maintained by the author of FAF. For more info, see https://findanyfile.app/support.php#translations