NEX file: How can I open a .NEX file?
The table below provides useful information about the .nex file extension. It answers questions such as:
- What is the .nex file?
- What program do I need to open a .nex file?
- How can the .nex file be opened, edited or printed?
- How can I convert .nex files to another format?
We hope you find this page helpful and a valuable resource.
✅ NeuroExplorer Data

The NEX file is a NeuroExplorer Data. NeuroExplorer is a powerful data analysis program for neurophysiology. NeuroExplorer has its own data format and by default saves the data in the binary file with the extension .nex.
✅ Opera 15 Navigator Extension

The NEX file is an Opera 15 Navigator Extension. Opera is a web browser and Internet suite developed by the Opera Software company.
✅ NEXUS Data File

The NEX file is a NEXUS Data File. Nexus file format (usually .nex or .nxs) is widely used in Bioinformatics.
⚠ Be careful with .nex files.
It's important to know that the .nex file extension can be used by various programs, not just the ones you expect. This includes potentially harmful software or malware that might create .nex files. Be cautious when dealing with .nex files from unknown sources.
🚫 The .nex file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
Is it possible that the filename extension is misspelled?
We found the following similar file extensions in our database:
🔴 Can't open a .nex file?
When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:
Select an app to open this .nex file
It means that the operating system does not have a default app associated with the .nex file type. To resolve this issue and open the file, you can take the following steps:
- Right-click on the .nex file. A context menu will appear.
- From the context menu, select Open with. Windows will display a list of recommended apps.
- If the desired app is listed, select it from the provided options.
- If you cannot find the appropriate app, you may need to install software that supports the specific file type.
If you don't know how to change the default app for the .nex file, check the FAQ.
🔴 Can I change the extension of files?
Changing the filename extension of a file is not a good idea. The extension of a file serves as a hint to the operating system and various software programs about the type of data contained within the file. When you alter a file's extension, you essentially modify how software applications interpret and handle that file. Every file has a specific format, also known as its file type or file format. The problem is, changing the file extension does not change the file format.
If you have helpful information about the .nex file extension, write to us.