A bit tortuous to achieve this, but now enabled, Thank you.
IT SHOULD BE THE DEFAULT (instead of the flippin twin _files folder)
Please provide a web site where people who like the old way ( .htm file with accompanying folder with same name, and _files on the end of the name ).
Not only do you have to live with all those 'twin' folders, but you may have issues with long file names within those flippin 'twin' folders.
Note to all potential employers, check the new web site that lists people that like the old horrible way, and NEVER HIRE THEM
PS Usually MS do not get their programs, etc 'right'
However the one thing that they did get right, is they have provided .mht in IE for decades.