Get text content from an epub file flutter

I am trying to extract text content from an epub file but unable to do so. I have tried converting it to bytes and then read it but it's not returning a proper text. I can't find any library that helps me do so. I only need the text file from the epub file so that I can read it with text to speech.

I did it using the epubx package

Here is the complete code

      File _epubFile = File(file.path);
      final contents = await _epubFile.readAsBytes();
      EpubBookRef epub = await EpubReader.openBook(contents.toList());
      var cont = await EpubReader.readTextContentFiles(epub.Content!.Html!);
      List<String> htmlList = [];
      for (var value in cont.values) {
        htmlList.add(value.Content!);
      }
      var doc = parse(htmlList.join());
      final String parsedString = parse(doc.body!.text).documentElement!.text;

      return parsedString;