A file with .cbc extension is a compressed collection of Comic Book files for eBooks and contains CBZ and CBR files. It is used by Calibre, an eBook conversion application, which is a cross-platform open-source e-book manager and lets you manage your ebooks and convert these to different formats. A CBC file contains a .txt file, comics.txt, that lists other files which are part of the archive. Several applications are available online that can convert CBC files to AZW3, EPUB, FB2, MOBI, TXT, PDF, and other popular file formats.
CBC File Format
CBC files are compressed archives that contain CBZ, CBR and a text file for listing the contents. The text file, comics.txt is UTF8 encoded and contains a list of the CBC files to be used by readers for organizing their collections. A CBC file has usually several attributes that allows the organization of this collection such as Comic, Category, Publisher, Series, Edition and Artist.
Contents of a sample CBC file are listed as follow.
comics.txt - Text file that contains list of CBR and CBZ files
CBZ file (s)
where the comics.txt file lists the contetns as follow.
1.cbz: First Chapter
2.cbz: Second Chapter
3.cbz: Third Chapter
Readers process the comics.txt file and generate table of contents based on the provided data.