This is a user-defined language (UDL) file for the notepad++ text editor for the UN/EDIFACT file format.
- Save the file as an
.xml
file to a place that makes sense to you. - Open notepad++
- Click Languages
- Click Define Your Language...
- Click Import and navigate to the file you created in 1.
This UDL was initially created by someone else, I only opted to improve it. You can find the original file here: click here .