Opening an ONF File

The ONF file type is primarily associated with Open Navigation Format File.

ONF	File extension: ONF
	File type:	Open Navigation Format files

What is an ONF file

ONF files mostly belong to Open Navigation Format File. ASCII-text file

How do you open ONF files?

You need a suitable software like Open Navigation Format File to open an ONF file. You need a suitable software like Open Navigation Format File to open an ONF 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 ONF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ONF file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ONF Text Viewer

Choose your .onf file to analyze

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Online File Viewer

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What to Do When a .ONF File Fails to Open

Because .ONF files can originate from different programs, they aren't universally openable.

Identify the Source: If received from a surveyor, pilot, or mapping workflow, it is likely an Open Navigation Format File containing routing data.
Check the Header: Open the file in a text editor to inspect the opening lines.
- <?xml or <ONF> indicates readable XML navigation data.
- { suggests a JSON-based structure.
- Scrambled characters mean it might be a rare binary format instead.
Use the Original Software: The original program is usually required to properly render the data. Try mapping tools, Open Navigation Format viewers, or Notepad++, and ask the sender if uncertain.
Use this Webpage: Drag and drop your .ONF file into our viewer to automatically detect its format, extract metadata, and preview the contents.

Technical Data for ONF File Extension

File classification:

Text

Related files:

osf, nfo, uns, bth, vui

an onf Open Navigation Format file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with ONF files

Associate the ONF file extension with the correct application.
Update your software that should actually open Open Navigation Format files. Because only the current version supports the latest ONF file format. Search, therefore, e.g. on the manufacturer website after an available Open Navigation Format File update.
To make sure that your ONF file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .ONF file online - secure, fast, and no downloads needed.