If typing into the search box isn't cheating: 1. Open folder 2. `type:text` in search box 3. Click 'ignore_me.txt' file to exclude, if you can't find it star

If typing into the search box isn't cheating: 1. Open folder 2. `type:text` in search box 3. Click 'ignore_me.txt' file to exclude, if you can't find it start typing 'ign...' until it shows up 4. Edit > Invert Selection or Alt,E,I