.OPF File Extension

E-Book Systems
File Type:
FlipViewer FlipBook File

Having trouble opening .opf extension? Don't panic! This page explains what opf files are as well as suggests programs you may use to open opf files. You can download these programs through this page.

What is a OPF file?

Opf file extension has FlipViewer FlipBook file type, developed by E-Book Systems, which is associated with the "data files" category.

FlipBook is a type of digital publications that can be viewed using FlipViewer. They are saved with the OPF extension with XML formatting. OPF files contain metadata for content describing purposes and also include text, a list of pages, and images referenced by the publication. Due to XML formatting, OPF files can be edited manually in any text editor. 

To learn how you can open the given file, read the information below.

opf file icon
E-Book Systems
File Type:
FlipViewer FlipBook File
Data Files

How to open OPF file?

Double click the opf file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .opf extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the opf extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the opf file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open OPF files

  • Windows Windows
    • E-Book Systems FlipViewer E-Book Systems FlipViewer
  • MacOS MacOS
    • E-Book Systems Mac FlipViewer E-Book Systems Mac FlipViewer

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the opf file as well. Download Universal File Viewer for your OS.

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