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JEM file extension

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

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

✅ Optifine JSON Entity Model

JEM file is an Optifine JSON Entity Model. OptiFine is a Minecraft optimization mod. It allows Minecraft to run faster and look better with full support for HD textures and many configuration options.
JEM format description not yet available
Category: Data files
Application: Optifine
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
JEM aliases:
JEM related links:
JEM related extensions:
Optifine JSON Part Model

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

🚫 The .jem file extension is often given incorrectly!

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

em, iem, jdm, jfm, jm, jrm, jsm, mem, uem

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Adobe Encore Menu Template
JavaScript Module
JAWS Script Message File
E-Sword v8 Memory Verses Data
Internet Explorer Maintenance Extension
UltraEdit Macro Source Code
Jade Diagram Document
PCEM Electromask Data
Medical Expense Manager Data
JetForm Filler Form

🔴 Can't open a .jem 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 .jem 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 .jem file extension, write to us!

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