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3 File Associations

.OPF File Extension

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Generic Icon
File Type
This file is saved in an XML format.
You can view the XML structure and contents of the file in a text editor.
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Open Packaging Format File
DeveloperIDPF
Popularity
3.0 (1 Vote) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryeBook Files
File Format Description

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.

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.

Program(s) that open .OPF files
Updated 5/19/2010

Generic Icon
File Type
This file is saved in an XML format.
You can view the XML structure and contents of the file in a text editor.
[x] Close  
FlipViewer FlipBook File
DeveloperE-Book Systems
Popularity
2.0 (1 Vote) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryData Files
File Format Description

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.

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

Program(s) that open .OPF files
Microsoft Windows Logo
Windows
Icon E-Book Systems FlipViewer
Mac OS X Logo
Mac OS
Icon E-Book Systems Mac FlipViewer
Updated 12/13/2007

Generic Icon
File TypeFlipAlbum File
DeveloperE-Book Systems
Popularity
2.0 (1 Vote) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryMisc Files
File Format Description

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.

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

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

Program(s) that open .OPF files
Updated 6/10/2010