I was playing with this and found the page at
Online Universal Cyrillic Decoder seemed to work when I selected from the first <p tag in the body of the file to the last </p> tag before the ending div/body/html. I've attached a screenshot of the conversion when I clicked on the OK on the expert line.
@KIE18 I would like to send you a private message though I am surprised that this is not already enabled. This is in the "Edit Options" of the control panel. If you don't see it there, please post a request in the
Requests to enable Private Messages thread.