Once backed up, your data is available both via the web portal or via the restore function in the software.
Restoring Data With a Web Portal - Recommended for entire folders or large amounts of data
Restoring Data With The Backup Client - Recommended for individual files or small amounts of data
Restoring Previous versions of files is available through both the Web Portal and the Backup Client. Please take a look at the documentation for both of the restoring options to decide which one is the best choice for your situation.