From: BENNYSOFT on
The bank sort code file 2010-06 for Germany is available for download
in Mobipocket, MobileDB, HanDBase, and EPOC Data format.

https://www.bennysoft.net/news/bank-sort-codes-germany-2010-06

The bank sort code file is updated by the Deutsche Bundesbank
quarterly. The file with ending date of April 19, 2010 is valid from
June 7, 2010 until September 5, 2010 and may not be used in the
payment transactions before. The next update with ending date of July
19, 2010 will be finished in August 2010. The ZIP files include the
bank sort code file leaflet of the Deutsche Bundesbank, which is valid
since October 31, 2009.