This section describes the ways of connecting external data bases like Access, MSSQL, and MySQL via ODBC. Next to these methods, there are various hooks for exporting lists to csv files, and of course, you can mostly use the Excel-button.
Related:
Connecting External Databases via ODBC
Synchronizing Parallel Databases
MS Access Anbindung
MSSQL Connection
MySQL Connection
General note on scheduled exports