In film viewer if you want all text and voice for the whole film removed, in start select column add 00:01, in end select add the end of film time. Go to remove text and voice and check the boxes and ok. It will bring a box up that says complete. Repeat the process of adding timestamps again, but instead of clicking on remove text and voice, click copy select and it will create a new file without text and voice.
I typed this in a hurry so if you can't figure it out let me know and I'll post a better explanation while in front of my computer later tonight