OPF files exist as 3 different types. Please find information about each of them below.
Type 1: FlipViewer FlipBook File
An OPF file contains XML data defining a FlipBook's content. It is created by FlipViewer. FlipViewer publishes eBooks known as FlipBooks. FlipBooks are saved in the OEB Package Format. The package has...
An OPF file contains XML data defining a FlipBook’s content. It is created by FlipViewer. FlipViewer publishes eBooks known as FlipBooks. FlipBooks are saved in the OEB Package Format. The package has an OPF file and content files like images. Users can also save FlipBooks as OPZ files. OPZ files are zipped and contain the FlipBook’s OPF file and content. Open OPF files with FlipViewer or Mac FlipViewer. The main association is with the FlipBook format. OPF files are rarely seen Data, Uncommon, or eBook Files. View OPF files on Windows, Mac, and Android. OPF files have low popularity, scarcely in file stores. More details are available on OPF files. Trouble opening? Free online OPF apps allow viewing, editing, converting, merging, splitting, and comparing without installing anything.
Adobe Digital Editions
Calibre