There are several ways to export data from Essbase on a large scale. Pulling it via Excel (Smart View or the Essbase Add-In) is not the best way to get large amounts of data when the goal is to move the data somewhere else, so this option will not be covered.
The easiest method is to export all the data from a database by exporting the database. This can be done in EAS. This method is easy to automate with Maxl, but has little flexibility with formatting and the only option is to export all the data. It can be exported in column format so the data can easily be loaded into another data repository. If the data needs to be queried, or manipulated, this is a good option.