Questions about: file-format

Overview calibre is a free and open source e-book library management application developed by users of e-books for users of e-books. Calibre is primarily a ebook cataloging program. It manages your ebook collection for you
File formats vary depending on the type of Operating Systems. Microsoft Windows has its own file formats as compared to Mac OSX. It also doesn’t state that you can’t open the files of one OS into another OS
In computing, a file system or filesystem is used to control how data is stored and retrieved. Without a file system, information placed in a storage medium would be one large body of data with no way to tell where one piece of information stops and