What is a .NBU File And How To Open It – Nokia (Visual Guide)

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Have you came across a file with the .nbu extension and you don’t know what it is? Perhaps you know what the file is, but you simply don’t know how to open it. Don’t worry! This article explains everything about the .nbu file extension, how to open and work with it on various systems.

What is a .NBU file?

The file extension .NBU comes from Nokia Phone Backup File. It was developed by Nokia. The format of this file is binary, and it is a backup file.

What to know

There are currently 4 software that can open the .nbu file on 1 platform.

How to open a .NBU file?

Below we will show you a step-by-step guide on how to open the .NBU file on various operating systems.

How to open a .NBU file on Windows (7, 8, 10)

To open the .nbu file on Windows, please follow these 4 easy steps.

1. The first step is to download the Jumping Bytes Mobile Master software. This software will be used for opening the file. Other software that can be used in opening this file is: Nokia Suite, Nokisoft Noki, NbuExplorer and Jumping Bytes Mobile Master.

Step 2

Step 2: Locating your .NBU 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: Choose “Open with”

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

Step 4

Step 4: Choose the software and click ok

4. After choosing the “Open with” option, you will have an option to choose the Jumping Bytes Mobile Master software you have downloaded. Choose your software and click on “OK”. Congratulations! You have opened your file on Windows.

Still cannot open the .NBU file?

If you are still unable to open the .NBU file, it might be because you are trying to open the wrong one. There are many similar file extensions that look like the .NBU file.nc – CNC Software, .nc – Unidata, .nc – Deutscher Stahlbau-Verband, .nc1 – CNC Software, .nca – Nintendo. 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 .NBU file with the Jumping Bytes Mobile Master, Nokia Suite, Nokisoft Noki, NbuExplorer programs on Windows.