The files in your cloud storage are created by digi.me and are what makes up your digi.me library. They contain all of the content you have downloaded in a highly encrypted and secure format, to ensure that you are the only person who can see the content you have chosen to import. This means you won't be able to see any information from these files inside your cloud. You are only able to see your data from inside the digi.me app.
To avoid the risk of damage being done to your library, please do not try to open or edit these files.