.OPF File Extension

.OPF File Extension

File Type 1

FlipViewer FlipBook File

Developer E-Book Systems
Popularity
3.6  |  25 Votes
Category Data Files
Format XML

What is an OPF file?

FlipBook, such as a digital magazine or other publication that can be read with FlipViewer; saved in the OEB Package Format (OPF) which is formatted in XML; includes metadata that describes the content and a list of pages, images, and text referenced by the publication.

More Information

Because OPF files are formatted in XML, they can be created and edited with a basic text editor.

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Programs that open OPF files

Windows
E-Book Systems FlipViewer
Mac
E-Book Systems Mac FlipViewer
Updated February 7, 2019
File Type 2

FlipAlbum File

Developer E-Book Systems
Popularity
3.7  |  15 Votes
Category Misc Files
Format Binary

What is an OPF file?

Digital photo album created by FlipAlbum, a program that organizes images into picture albums; stores the album structure, appearance settings, and references to image files; can be viewed with 3D page-flipping effects.

More Information

FlipAlbum photo albums are commonly used for sharing pictures with friends and family. Professional photographers also used them for arranging pictures for clients.

OPF files are saved in E-Book Systems' proprietary FlipAlbum XML format, and should not be confused with the Open Packaging Format (OPF) standard.

NOTE: FlipAlbum has been discontinued and is no longer available for download.

Programs that open OPF files

Windows
E-Book Systems FlipAlbum
Mac
E-Book Systems FlipAlbum
Updated October 14, 2016
File Type 3

Open Packaging Format File

Developer IDPF
Popularity
3.4  |  14 Votes
Category eBook Files
Format XML

What is an OPF file?

File formatted according to the Open Packaging Format (OPF) standard, which is part of the EPUB eBook specification; stores eBook information such as the title, language, book ID, creator, reading order, and display formatting; used as part of an .EPUB archive to specify eBook metadata.

More Information

OPF files are saved in an XML format. The Open Packaging Format standard also requires a second .NCX XML file that stores the table of contents for the EPUB eBook.

Programs that open OPF files

Updated May 19, 2010

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