File extension .ESM
Full Name | Developer | Category |
---|---|---|
Elder Scrolls Master Format | Bethesda Softworks | Game Files |
ESM (Elder Scrolls Master File) is a .esm file extension which is used by the Bethesda Softworks game engine. It stores data related to game levels, environments, textures and characters, and is also used for plugins and mods. The ESM format is also known as 'Master File' and is stored in a compiled binary format that can contain multiple object files. This type of file is used to store game objects, which can include scripts, dialogs, items, spells, maps, locations, creatures, NPCs, and much more.
Similar File Extensions
ESM (Elder Scrolls Master File) is similar to other game based file extensions such as .esp, .bsa, .bsl, .bz2, and .zip. Each of these files serve a different purpose within the game engine, such as storing game saving data, mod packages and resource bundles.
File Interoperability
The ESM file format is not directly interoperable with other software applications or operating systems. However there are programs available that can convert ESM files into platform-independent formats such as RSS, JSON, and XML, enabling them to be read by multiple programs and operating systems.
Programs for WINDOWS system
After installing the required software, the operating system will usually automatically associate an unknown file type (in this case .ESM) with the new application. If this does not happen, we can help the system a bit by selecting the software for it, which it should always use to open files with the .ESM extension.
When choosing the software we can select the system to use this software every time.
Remember!
Using it for the first time it is good to check whether the .ESM file opened in the application can be read by us and opens in a way that allows us to use it. If everything is in order, select this option the next time you open a file with the .ESM extension. However, if the file has not opened correctly, we have to look for a different software, with which we can open files with the .ESM extension. Select a different software from our list and install it on your computer. After the software is installed, repeat inspection openings of a .ESM file. Sometimes you have to repeat the operation several times.
Other instructions
If none of the programs listed by us to work with the .ESM file has not meet your expectations, you can try searching other websites. But remember to avoid downloading programs "that can open any file". These applications not only have very limited functionality, but may also expose you to expense tens of dollars when purchasing a license.
In the vast majority of cases you will find the program dedicated to support the .ESM file, or any other file format. In addition, there is a chance that it will be a free program, and its functionality (concerning the .ESM file) will be extended to the maximum.
It is also good to check
- if the .ESM file has no errors
- or if it has been copied (or downloaded by the browser) thoroughly
Author’s guidelines

Mr B. Adam
Author of the guidelines / Founder of FileExtension.info
New technologies enthusiast, helping to solve problems with the files.
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