Facebook group files can be searched in a few different ways. The first way is to use the search bar at the top of any group page. This will allow you to type in a word or phrase and see all the posts that have been made about that topic. Another way to search for group files is to go to the Files tab on any group page and select “Search Files.” This will open a window where you can type in a word or phrase and see all the files that have been shared in relation to that topic. Finally, you can also go directly to a specific file by clicking on its name on any group page. ..