A daily updated filename extension database!

JEFF file extension

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

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

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

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

✅ Java Explanation Facility Framework Data

.jeff
Description:
JEFF file is a Java Explanation Facility Framework Data. JEFF (Java Explanation Facility Framework) is an explanation facility framework written in Java.
JEFF format description not yet available
Category: Data files
Application: JEFF
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
JEFF aliases:
-
JEFF related links:
-
JEFF related extensions:
-

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

🚫 The .jeff file extension is often given incorrectly!

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

eff, jef

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

JPEG Bitmap Image
Janome Embroidery Data
Infinity Engine 2.0 Effects
EVS Field Data
Efficient PIM v2 Data

🔴 Can't open a .jeff 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.jeff

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 .jeff 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 .jeff file extension, write to us!

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