If you have been sent a report, you can only view photos, videos and audio files through the MediCam app. This is by design, for security purposes. In order to open a .medicam file you must the MediCam app (on iOS and Android devices) and you must be signed in to MediCam.
If you are the one sending the report it is possible to send the files to a Box or Dropbox account (if you have the MediCam PRO). When sending reports to Box or Dropbox the raw files will be transmitted and (presumably) stored securely.
If you set up an institution you will be able to integration with your medical record system to input the raw files. Please see the Integrations Section.