What is a .NPFX File And How To Open It – Symantec

Table of Contents


Have you came across a file with the .npfx extension and you don’t know what it is? You most likely know what the file is, but you might be unsure on how to open it. In this article we will explain what .npfx file extension is, how to open it and how to work with it.

What is a .NPFX file?

The .NPFX file extension stands for Norton Internet Security Firewall Settings File. The developer of this file extension is Symantec. The file is a settings related file.

What to know

There is currently 1 software that can open the .npfx file on 1 platform.

How to open a .NPFX file?

In this part of the article we will show you how to open the .NPFX file on various operating systems.

How to open a .NPFX file on Mac

The .npfx file can be opened in 4 steps on Mac.

1. In the first step you need to download the Symantec Norton Internet Security 5 software. This software will be used for opening the file.

Step 2

Step 2: Finding your .NPFX file

2. In the second step you need to locate the downloaded file. If you don’t remember where you have downloaded your file to, you should check your /download/ folder as it usually gets automatically saved there.

Step 3

Step 3: Clicking “Open with”

3. In the third step right click on your file and choose “Open with”.

Step 4

Step 4: Choosing the software to open your file

4. In the fourth step, after clicking “Open with”, you should see the Symantec Norton Internet Security 5 software that you have downloaded. Click on the software and click “OK”. Congratulations! You have opened your file on Mac.

Still cannot open the .NPFX file?

If you are still unable to open the .NPFX file, it might be because you are trying to open the wrong one. There are many similar file extensions that look like the .NPFX file.npk – MikroTik, .npl – Nokia, .npl – Xilinx, .npl – Steinberg Media Technologies, .npp – Nova Development. You might be trying to open one of them. Please recheck the file extension again.


In this article you have learned how to open the .NPFX file with the Symantec Norton Internet Security 5 program on Mac.