I was looking for a small Windows utility to re-build the ePub files I open to edit the .opf and .ncx files (since I can't edit those in Sigil), and this does just that. I don't know if it's still maintainted or something but it's still working, so thanks!
On a related note, except oXygen, is there any text/xml editor that can open directly an ePub file to edit it without the need to re-build it every time?
|