.HED what is the file extension?

Question

Text Processing Automation

Dear friends!

Please help me understand this type of files - with the extension .HED
There is no information on them on the Internet.
The fact is that these files should display text information, and when you open them, strange characters come out in an incomprehensible encoding.
We must use these files to display information from a third party medical system in our web application.

Many thanks in advance!

spoiler

sample file:
https://dropmefiles.com/MaITf

Answer 1

https://highedit.textcontrol.com/