Hi there. I’m getting a weird dialog box when I try to open the L1 updater (I don’t have an L1 btw) and same message when I try to open the t4 update master -v1.1-25adfea.bos. Both of those files generate a dialog box that says ‘there is no application set to open the document’ and no clear path to what application would open it. I did watch the vid and read the instructions, but there’s no mention of this glitch and I can’t seem to get past it to open the files and move forward. I’m in macOS High Sierra 10.13.6. Your help is greatly appreciated. Thanks!