Both ISO-10303 Part 21 and Part 28 data files have an optional header section in them. This header section is stored in the EDMdatabase and may be used for adding metadata to populations exported to Part 21 or Part 28 data files. The metadata that may be specified in the header section is given by the underlying EXPRESS schema HEADER_SECTION_SCHEMA
When data sets are exported with header sections, EDMsix will include information about the version of Express Data Manager that created the STEP physical file. If you distribute your application under EDMsixInside or any other ESLA agreement with Jotne EPM Technology AS, you are not allowed to post process the header section to remove this acknowledgement. (Ref. Jotnes Embedded Software License Agreement, section 3.4)