This, of course, can be a bit cumbersome.
I’ve used it a number of times and it really does work.
You have to be a bit careful that the HTML is formatted “nicely” so that it plays nicely with WordPress, but that’s fine. It’ll save you time in the long run.
There are a couple requirements that you’ll want to look into, but generally this can be a good option if you’re having to do a lot of this stuff manually.
Enjoy the time saving, and let me know if you end up trying it!