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LKUP file extension

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

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

✅ iiV Lookup

LKUP file is an iiV Lookup. iiV (formerly CNUViewer) is a brain imaging data display tool developed by the Cognitive Neuroimaging Unit.
LKUP format description not yet available
Category: Data files
Application: iiV
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
LKUP aliases:
LKUP related links:
LKUP related extensions:
iiV Lookup Script

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

🚫 The .lkup file extension is often given incorrectly!

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

kup, lup, lkp, lku

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Karaoke Song List Creator Database
Microsoft SMS Lookup File
OzWin Library Update File
ARINC 615A Load Upload Part

🔴 Can't open a .lkup 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:


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 .lkup 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 .lkup file extension, write to us!

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