MSEDGE - XML files are not rendered if it tries to access local XSLT files in the same directory,

Seaswara Hello!  It looks like you are encountering a scenario that was covered in a blog post by Eric Lawrence from the team.  The article does go into detail and contains some work arounds.  Please see: Restrictions on File Urls – text/plain (textslashplain.com)

IE mode in Microsoft Edge does provide backwards compatibility for legacy apps and sites within a modern browser.  A lot of great informational links can be found here: https://docs.microsoft.com/en-us/lifecycle/announcements/internet-explorer-11-end-of-support or here: https://docs.microsoft.com/en-us/deployedge/edge-ie-mode Thanks!

-Kelly