The SEF Manager
The SEF Manager is a utility for viewing and editing SEF files. It takes a machine-readable SEF file, which is difficult to understand in its raw format (see below)...
...and parses the SEF file, and arranges its segments and elements along with their descriptions and properties in a hierarchical tree making the SEF file readily manageable for viewing and editing.
The SEF Manager can also display a SEF file in a layout typical of most companion guides as shown below.
For details on editing a SEF file with the SEF Manager, please visit Creating an EDI Implementation Guideline.
EDIdEv SEF Manager Utility
Editing a SEF file for a more accurate EDI validation
Adding a Value List in a SEF file for better EDI validation