AZW3 to EPUB Conversion in Calibre Not Working

[theducks]

Originally Posted by tkil44

I sent the book and used file. Where do I find the CCS? The document is not corrupt.

Unpack it the 'U' key

Select AZW3
(should be your only choice): Explode
Look in the styles folder
Open it with Notepad or similar TEXT editor (NOT Word or similar. Never save if you do)

It should look like a typical CSS (I found one that was mostly @stuff, the real styles were all inline in the HTML

Select All, the paste that into the box at W3c

That will TELL you which lines have issues (w3c will gripe about thing like text-justify: trim (those are sort of warnings)

You want to worry about PARSE and Syntax errors
Then you need to (fix) edit the original CSS and click Rebuild Book
:Click Cancel if you did not intentionally change anything

[Divingduck]

@tkil44, you are right, that file isn't that big.

Only one thought.

He is using calibre. calibre have an editor for azw3 and epub. That's for the first step all he need for doing the job. Why forcing him to use additional tools, unpacking, editing files repacking it back when he hasn't the knowledge to understand the meaning of messages around css, file structures within ebooks and so on?

Isn't it better using the calibre editor, checking the ebook, copy the results to clipboard (right click) and paste the results here for further help?
All needed information are are shown in the details of the internal report (see attachment).

An other and maybe much better way is to install and use plugin ScrambleEbook and post the scrambled book here and we all can do a own check and tell him how to go forward.