> For the complete documentation index, see [llms.txt](https://docs.geodin.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.geodin.com/importing-data/sep3-exchange-database.md).

# SEP3 Exchange Database Import

SEP3 is a German-market state-authority data exchange standard - the import procedure and troubleshooting for it live on the German support portal.

SEP3 is the German state-authority (Landesamt) standard for geological borehole data exchange. It applies when a Landesamt delivers borehole data as a plain SEP3 Access database - a file containing only the SEP3 data tables, without the GeoDin system wrapper tables a normal project database requires.

GeoDin cannot open such a file directly as a project database. A special **exchange database** (German: *Austauschdatenbank*) bridges the two: it reads the SEP3 table structure from the authority's file and exposes the objects so they can be copied into your main GeoDin database.

SEP3 - like SEP1, its legacy predecessor - is German-market-specific: the object types, table structures, and delivery format are defined by German state authorities and are not used outside that market.

For the exchange-database download, connection, and step-by-step import procedure, see [Import externer SEP3-Daten mit der SEP3-Austausch-Datenbank](https://support.geodin.com/hc/de/articles/115003373465-Import-externer-SEP3-Daten-mit-der-SEP3-Austausch-Datenbank) on the German support portal, which is the canonical home for SEP content. For SEP import problems, see [Problems with SEP data](/support/troubleshooting.md#problems-with-sep-data-german-state-authority-deliveries).

For general (non-SEP) import how-tos, see [Import](/importing-data/import.md) and [Cross-database object copying](/importing-data/cross-database-object-copying.md).


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