A daily updated filename extension database!

NII file extension

The table below provides useful information about the .nii file extension. It answers questions such as:

  • What is the .nii file?
  • What program do I need to open a .nii file?
  • How can the .nii file be opened, edited or printed?
  • How can I convert .nii files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ NIfTI-1 Data Format File

.nii
Description:
NII file is a NIfTI-1 Data Format File. NIfTI-1 is a new Analyze-style data format, proposed by the NIfTI DFWG as a short-term measure to facilitate inter-operation of functional MRI data analysis software packages.
NII format description not yet available
Category: Data files
Application: niftilib
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
NII aliases:
-
NII related links:
-
NII related extensions:
-

Other types of files may also use the .nii file extension.

🚫 The .nii file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

bii, gii, ii, ini, mii, ni, nil, nji, nki

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Basilisk II Data
Norton Icon Library File
GIfTI Data
Nero BackItUp Job Information
IconWorkshop Extended Information
Native Instruments Kontakt Library
Initialization File
Nintendo Wii Virtual Avatar
NetObjects Fusion Preview

🔴 Can't open a .nii 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:

Windows cannot open this file:

example.nii

To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .nii file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .nii file extension, write to us!

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