Initially, the program tried to open my data files on iCloud. However, I was successfully able to browse to Dropbox to open a file I had been using on my Android phone. I had previously installed Dropbox on my Mac so it showed up in the list of folders to browse. It is able to open my existing files properly. However, I am unable to add any new accounts. I haven't tried the other features out yet. Will let you know what I find. Thanks.