I think you misunderstood. I have the Google Drive, OneDrive, and Dropbox apps.... they all three show up as ‘Locations’ in the new Files App. I am able to open ANY file from the Google Drive location.... what I am NOT able to do is open any MS Office files from the OneDrive or Dropbox locations... instead, it takes me to the google Drive location and asks if I want to save the file there (I don’t... but it actually doesn’t save it even if you select the option to do that). Bottom line: Google Drive itself works fine but there is something that hijacks MS Office files from OTHER locations - rendering them useless in the Files App. Side note: I am able to open files directly from the OneDrive and Dropbox APPS... just not those ‘locations’ within the Files App.