I have an email header stored in a .txt file.
An automated process opens the file in Ms Word 2016.
Word gives "Is not a valid single file web page" error.
Obviously word is sniffing the file, it looks like a mime document, word incorrectly decides it's a web archive file, and tried to open it as such.
This fails, as it obviously isn't a web archive file.
Is there any way to switch off this behavior in word?