NEF File Extension
Nikon Electronic Format RAW Image
- File Type nef
- Developer Nikon
- Popularity
- Application ViewNX
- Category Camera RAW Files
- Format Binary
What is a NEF file?
Files with the NEF extension are specifically tied to Nikon Electronic Format RAW Image, a Camera RAW Files type, and there are 51 files in this category.
The Nikon Electronic Format RAW Image (NEF), created by Nikon, is one of file format they developed, and they also built 7 programs to support them.
NEF files are compatible with various operating systems, including Windows, Mac OS and Linux. When working with NEF files, you can rely on 28 programs, including ArcSoft PhotoStudio, ACDSee Photo Manager and XnView.
File Signature
HEX code: 4D 4D 00 2A 00 00 00 08 00. ASCII code: MM *.
Programs that support NEF files
Windows
ArcSoft PhotoStudio
ACDSee Photo Manager
NEF Codec
Microsoft Camera Codec Pack
HDR Darkroom
FastPictureViewer Pro
Adobe Lightroom
Adobe Photoshop
XnView
ViewNX
PaintShop Pro
FastStone Image Viewer
Zoner Photo Studio- Picture Information Extractor
BatchPhoto
XnConvert
Adobe Photoshop Camera- PhotoPhilia
PhotoFiltre Studio
PhotoPlus
Nikon Capture NX-D- RAW2NEF
- Magix Photo Manager
Adobe DNG Converter
Rawzor Photo
How to open a NEF file?
If you can’t open a NEF file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.
ArcSoft PhotoStudio, ACDSee Photo Manager and XnView are among the most widely used programs for handling NEF files. To install the most up-to-date edition of ViewNX, visit the official Nikon website. You can download the build that works across all operating systems.
After installing, your OS should instantly open NEF files with ViewNX.
Setting ViewNX as default NEF viewer
Change the default app for a file type in Mac
- Initiate a right click or use Control + left click on the desired NEF file to open a menu where you can select various actions;
- Choose "Open in Application" and click "Other";
- Look towards the bottom of the window, where you will find the "Enable" menu. "Recommended programs" will be the default selection;
- Choose "All Programs" in this menu and search for ViewNX. Check the box next to "Always open in app" to set it as the default option.
Change default programs in Windows
- Take the first step by right-clicking on your NEF file. Next, select "Open With" and then choose "Choose another app" from the available options;
- Choose ViewNX from the available applications listed in the pop-up window to set it as the default application to open your NEF file;
- Be sure to check the "Always use this app" checkbox, and then click "OK" to confirm your selection.
How to edit a NEF file?
To modify NEF files, it is necessary to install dedicated software that lets you open and edit camera raw files. Online NEF editors generally offer fewer tools compared to programs designed for Nikon Electronic Format RAW Image.
Best NEF editors 2026
Based on the specified criteria, here is a list of NEF editors that may fit your requirements.
| NEF Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| ACDSee Photo Manager | ACD Systems | Windows | 4.5 out of 5 (42 reviews) |
| ArcSoft PhotoStudio | ArcSoft | Windows | 4.5 out of 5 (41 review) |
| darktable | darktable team | Linux | 4.5 out of 5 (37 reviews) |
| FastPictureViewer Pro | Rietschin | Windows | 4.4 out of 5 (41 review) |
| Zoner Photo Studio | ZONER | Windows | 4.4 out of 5 (41 review) |
| Apple Aperture | Apple | Mac OS | 4.3 out of 5 (43 reviews) |
| ViewNX | Nikon | Windows | 4.3 out of 5 (39 reviews) |
| Adobe Lightroom | Adobe | Windows, Mac OS | 4.2 out of 5 (43 reviews) |
| Adobe Photoshop | Adobe | Windows, Mac OS | 4.2 out of 5 (50 reviews) |
| PhotoFiltre Studio | Antonio Da Cruz | Windows | 4.2 out of 5 (47 reviews) |
Convert files to and from NEF
When a NEF file is not easy to work with, converting it to formats like JPG, JPEG, GIF, PNG, TIF or other comparable types may help.
It is important to understand that converting a NEF file might limit certain functions, but this conversion is usually reversible.
Convert NEF to other file formats
Converting Files to NEF Format
Tips and tricks to solve problems with NEF files
Problematic NEF files can usually be resolved by making small changes in your software. See the tips below to help fix common issues.
Are there any techniques or tools available to repair a damaged NEF file?
In a data recovery program, open the damaged NEF file and select the "Repair" menu option. Wait for the recovery process to finish as it will automatically restore the damaged camera raw files.
How do I know if my NEF file has been damaged?
The signs of corrupted NEF camera raw files can manifest as:
- Error alerts occur when actions are performed on the file;
- The file shows slow performance when edited in ACDSee Photo Manager;
- The file encounters problems during the opening process or shows error indications;
- An unexplained increase in the size of the NEF file;
- The file causes ViewNX or other software to hang or crash during various operations;
What factors contribute to ViewNX crash?
Lack of software updates is a possible reason behind ViewNX crash. Keep your Nikon products up to date by installing the latest updates.
Restarting your computer is an essential troubleshooting step that can resolve many common problems. It is recommended to restart your computer before making any changes to the software settings.