What is a .NMC File And How To Open It – ESRI (Easy Steps)

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Have you downloaded a file with .nmc extension, but you have never seen this extension before? It is important to know how to open this file – in order to be able to work with it. Don’t worry! This article explains everything about the .nmc file extension, how to open and work with it on various systems.

What is a .NMC file?

The file extension .NMC is from ArcGIS Explorer Map Content File.This file extension belongs to the developer ESRI. The format of this GIS software file is binary.

What to know

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

How to open a .NMC file?

Below you can find an easy to understand, step-by-step guide to open the .NMC file on your operating system/device.

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

There are 4 simple steps to open the .nmc file on Windows.

1. The first step is to download the ESRI ArcGIS Explorer software. You will be using this software in order to open the file. Other software that can be used in opening this file is: ESRI ArcGIS Explorer.

Step 2

Step 2: Locating your .NMC 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. In the fourth step, after clicking “Open with”, you should see the ESRI ArcGIS Explorer software that you have downloaded. Click on the software and click “OK”. That’s all, now you have opened your file on Windows.

Still cannot open the .NMC file?

If you cannot open the .NMC file, it is entirely possible that you are trying to open the wrong file. The .NMC file extension is similar to other file extensions such as: .nmea – National Marine Electronics Association, .nmf – ESRI, .nmind – NovaMind, .nml – Native Instruments, .nml – NSMBe. 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 .NMC file with the ESRI ArcGIS Explorer program on Windows.