The latest version of Edge (114) no longer always opens Mht files.

Hello
I find a solution with smartbear support ! in this link 

https://learn.microsoft.com/en-us/answers/questions/450116/how-to-enable-ie-mode-on-microsoft-edge

more exactly :

There're two steps required to configure IE mode:

1. Configure Internet Explorer integration
2. Redirect sites from Microsoft Edge to IE mode

rraghvani if it's works for you, i think your It manage policies and it configured them for your computer 😉