Quote:
Originally Posted by stumped
It's been a while but I am pretty sure it would not let me delete a specific xhtml file from the left hand list, while in epub3, and the error message was something about operation not allowed.
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Ah yes. That would be the nav document. It's required in an epub3. As such, it cannot be deleted (any more than the content.opf can be deleted). The nav document is identified by manifest properties in the opf. It could have any kind of name whatsoever in the Book Browser.
When using Sigil's ToC editing tools, it's the ncx being modified when in an epub2. But those same tools modify the nav document when editing an epub3.