Hi,
You can consider the MATLAB Drive Connector. Essentially, you would have to download the connector as an add-on. You can then move files with "copyfile" to your local MATLAB Drive. With the connector technology, the files from your local MATLAB Drive will be synced with MATLAB Drive online, allowing you to access files over the web.
Outside the realms of the MATLAB Drive, you could potentially use "copyfile" to move files to a local folder synced with an online drive (Ex: Dropbox), see this File Exchange Submission for that lets you determine the path to your local dropbox folder.
