Movie sheet help

Sorry to post so much but Do I add those to files to what I already have or do I sunstitute the.xml for the one I have only I get the dummy file even though I am a bit confused at why I need it I was told it was for a backup if I clicked get info from the hub options. So if I truly don’t need the dummy exept for that reason I would be ok not doing that one but if I need it to get to where I want to be then I will do it

Terry