File Extension EPUB

.EPUB File

File extension: EPUB
File type: eBook

Notes about the EPUB file extension:

To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened" (Windows 7) or "How do you want to open this file?" (Windows 10) if you double-click the file. There click on "More apps" and choose a suitable software to view such files on your PC or from email attachments.

The EPUB file type is primarily associated with 'Open Publication Structure' by International Digital Publishing Forum (IDPF). .EPUB is the file extension which refers to two open standards, the Open Publication Structure (OPS) and Open Container Format (OCF), produced by the IDPF. .EPUB allows publishers to produce and send a single file through distribution and offers consumers interoperability between software/hardware for unencrypted reflowable digital books. OEB, originally produced in 1999, is the precursor to OPS. .EPUB files are a ZIP file with XML/HTML eBook content along with a XML file describing the contents. You can use the Adobe Digital Editions program to read these files.

Detailed information for file extension EPUB:

Primary association: Open Publication Structure
Company: International Digital Publishing Forum (IDPF)
File classification: Archive
Mime type: application/zip
Identifying characters Hex: 50 4B 03 04 , ASCII: PK
Related links: Adobe Digital Editions, How to Make an IDPF .epub eBook, Wikipedia IDPF Information Page
File Identifier - TrID
'Identifying characters' used on are
provided by Marco Pontello from his TrID database

To change file associations press Windows Key + X and then Apps and Features > Default apps > Choose default apps by file type. Invalid file associations could be the result of underlying issues within your Windows PC.

Technical data

To view technical data on file-extension EPUB click this link to expand/hide the additional area.

System Info for File Extension .EPUB

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: Adobe.DigitalEditions
EXEFile: %ProgramFiles%\Macromedia\Flash Player\\bin\digitaleditions2x0\digitaleditions2x0.exe

ProgramID: Adobe.DigitalEditions
EXEFile: %ProgramFiles%\Macromedia\Flash Player\\bin\digitaleditions2x0\digitaleditions2x0.exe

ProgramID: Adobe.DigitalEditions
EXEFile: %ProgramFiles%\Adobe\Adobe Digital Editions\digitaleditions.exe

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