The bank sort code file 2008-12 for Germany is available for download
in Mobipocket, MobileDB, HanDBase, and EPOC Data format.
https://www.bennysoft.net/news/bank-sort-codes-germany-2008-12
The bank sort code file is updated by the Deutsche Bundesbank
quarterly. The file with ending date of October 20, 2008 is valid from
December 8, 2008 until March 8, 2009 and may not be used in the
payment transactions before.