Opening an OCF File

The OCF file type is primarily associated with Hirschmann HiVision.

OCF	File extension: OCF
	File type:	configuration file

What is an OCF file?

OCF files mostly belong to Hirschmann HiVision. OCF files serve multiple specialized roles. The primary use is as a network switch configuration file used with the Hirschmann Industrial HiVision Configuration Tool. This file stores switch settings in an XML format and is key for managing network switch operations.
Other useful applications include:

CAD Drawing Files: These files can hold design data used in computer‑aided design work, often associated with solutions from Open Cascade.

Camera Firmware: Some OCF files are used as firmware for Olympus cameras, managed via software like Olympus DSS Pro provided by SNIPAC.

FilExt.com note: If you have an OCF file, identify its source. Use the appropriate tool: for switch configuration, open it with the Hirschmann Industrial HiVision tool (Belden), for CAD drawings use compatible CAD software, and for firmware updates follow your camera manufacturer’s instructions.

How do you open OCF files?

You need a suitable software like Hirschmann HiVision to open an OCF file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your OCF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a OCF file directly in the browser:. Just drag the file onto this browser window and drop it.

Online OCF Text Viewer

Choose your .ocf file to analyze

or drag and drop it here

Online File Viewer

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OCF file format:

If you can determine the file format, the associated program can also be determined. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. However, different programs can use the same file extension. Furthermore, a file extension can be renamed incorrectly and double-clicking on it will then display an error when it is opened. So a detailed analysis of a file is vital in order to determine the format and the associated program. In the following you will find our evaluation of the OCF files:

The OCF file extension is rarely used and includes different formats for different programs. But the following two file formats are common:

• 25% of all OCF files save the data in XML file format. The Extensible Markup Language (XML) is a simple text-based format for representing structured information: documents, webpages, data, configuration, books, transactions, invoices, and much more. XML defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. The contents of these files can even be read by a human. The files are often between 26 KB and 49 KB in size. Several words can almost always be found in the files, e.g. <?xml version="1.0" encoding="UTF-8" standalone="yes"?>, <CONFIG_HEADER>, <root>, <Var name="swVersion" val, <Var name="deviceID" value="rs"/>, <Var name="variant" value="L2E"/> and <Var name="variant" value="L2P"/>. Files like these are about switch.
• 15% of all OCF files use the same file format, which have the signature OCF-P. The contents of these files cannot be read by a human; only a computer program can interpret the data. The files are on average 790 KB in size and range from 26 KB to 11 MB. The keywords OCF-P are typical for these files.

All other OCF files (60%) have no uniform format, frequently e.g. Oberon/F Code File. Files like these are sometimes linked to config or dxof. If you want to find out which format your OCF file belongs to, just click on the button "Choose your .ocf file to analyze".