This version is designed specifically for cleaning html generated by Word or Open or Libre office for preparation for creating an ebook.
Use your word processor to save your manuscript as html, then, open the html file and select all and copy.
Then paste into the upper window.
Now, open the html file in a TEXT EDITOR (notepad, notepad++, etc NOT WORD!) and delete everything and paste in the content from the bottom window.
Now, review what you have in your browser and see if it's ebook ready.
So, click here for the tool: Rick's Ebook Prep Cleaner Upper