The BankNrxx.txt file contains values for the Credit institution and BIC fields which are available after an entry was entered into the Postal code field.
With the file, the credit institution and BIC are automatically enhanced and checked taking the Country field into account.
To automatically adjust the data, you need a file with the corresponding name, for example, BankNrAT.txt for Austria.
The assignment to a country is made via the ISO contry code in the file name, for example, AT for Austria.
The file has the following structure:
BLZ;Name;BIC
66050101;Sparkasse Karlsruhe;KARS66XXX