Backup / Export Dataitems to local PC - Best way to do?

Hello.

I am trying to figure out the best way of exporting the data within the Axeda Enterprise Server to a local server in-house. I need to export the current and historical dataitems for each asset (included some asset information).

Important for me is that I need a kind of "give-me-everything" solution, because the list of dataitems per asset might be different, not every asset has every dataitem. 

What's the best way of doing so on a regular basis?