An s12 file extension is related to the WISO Steuer-Sparbuch version 2012 software.
S12 file extension - WISO Steuer-Sparbuch 2012 data
What is s12 file? How to open s12 files?
File type specification:
The s12 file extension is associated with the WISO Steuer-Sparbuch, a financial and accounting software for Microsoft Windows operating system developed by uhl Data Service GmbH.
The s12 file stores some kind of financial data used by WISO Steuer-Sparbuch 2012.
This s12 file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.