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Old 02-01-2023, 08:07 AM   #7
rosewood
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rosewood began at the beginning.
 
Posts: 14
Karma: 10
Join Date: Jan 2023
Device: fire hd 10
Thank you all.
@Kovid: I tried *.txt -> *.epub -> *.azw3 as you suggested but the problem remained.

@MartinOptic: I tried *.txt -> *.docx (in MS Word) and then *.docx -> *.azw3 (in Calibre) as you suggested but the problem remained.

But I solved the problem as follows:

I highlighted the problem book in the book listing on the Calibre main screen

I clicked on the Edit Book icon in Calibre to open up the Edit utility

I exported the 6Mb part0000.html to another directory, then deleted this file in the Edit utility

Have a quick look at post #1 in this thread, where I wrote:

<li class="calibre3"><span>CHAPTER</span> 12 Hero's Return by Jack Straw</li>


I opened the exported part0000.html in a text editor (Wordpad) and replaced

<li class with <h2 class

and I then replaced

</li> with </h2>

then saved the file and shut down Wordpad.

I returned to tha Calibre Edit utility, imported the altered part0000.html and clicked on the Save icon.

Process complete. This generated the desired ToC.

From this I learnt that sometimes its best to avoid the at times dodgy conversion process in Calibre by using external software.
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