.ESM File Extension

Bethesda Softworks
File Type:
Fallout 3 Master File

Having trouble opening .esm extension? Don't panic! This page explains what esm files are as well as suggests programs you may use to open esm files. You can download these programs through this page.

What is a ESM file?

Esm file extension has Fallout 3 Master file type, developed by Bethesda Softworks, which is associated with the "game files" category.

Typically applied by Fallout 3, the file allows saving core data, such as object data,  maps, dialogs, gameplay settings, etc., which is loaded when playing the game. Users should not edit ESM files.

However, ESM files can be altered, using The Garden of Eden Creation Kit (GECK), in order to modify the gameplay. To add plugins to the game, users may apply .ESP files.

To learn how you can open the given file, read the information below.

esm file icon
Bethesda Softworks
File Type:
Fallout 3 Master File
Game Files

How to open ESM file?

Double click the esm file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .esm extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the esm extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the esm file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open ESM files

  • Windows Windows
    • Bethesda Softworks Fallout 3 Bethesda Softworks Fallout 3
    • Bethesda Softworks GECK Bethesda Softworks GECK

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the esm file as well. Download Universal File Viewer for your OS.

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