ERF File

What are ERF files and how to open them

Are you having problems opening an ERF file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is an ERF file?

ERF files have multiple uses, and BioWare Entity Resource is one of them. Read more about the other uses further down the page.

BioWare Entity Resource File

These ERF files contain the entities and models used by Bioware, video game developers who specialize in role-playing video games. These models that are saved consist out of shapes, materials, and other information that create or define the model.

How to open ERF files

Important: Different programs may use files with the ERF file extension for different purposes, so unless you are sure which format your ERF file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested ten different ERF openers which you will find listed below.

Last updated: January 16, 2023

All known file formats using extension .ERF

While BioWare Entity Resource File is a popular type of ERF-file, we know of 3 different uses of the .ERF file extension. Different software may use files with the same extension for different types of data.

Camera RAW Image File (Epson)

We know that one ERF format is Camera RAW Image File (Epson). We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

ERF opener for Windows

We have identified 2 ERF openers that are compatible with this specific type of ERF file.

More file formats using the ERF extension

Through our research of ERF files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • Compucon EOS Design Format

Various apps that use files with this extension

These apps are known to open certain types of ERF files. Remember, different programs may use ERF files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Adobe PhotoshopAdobe PhotoshopUser submitted
Photo GalleryPhoto GalleryUser submitted
Picasa Photo ViewerPicasa Photo ViewerDiscontinued
PhotoPad Image EditorPhotoPad Image EditorUser submitted
HoneyviewHoneyviewUser submitted
Ashampoo Photo CommanderAshampoo Photo CommanderUser submitted
Zoner Photo StudioZoner Photo StudioUser submitted
Corel PaintShop ProCorel PaintShop ProUser submitted
RAW Thumbnail ViewerRAW Thumbnail ViewerUser submitted

Help us help others helps thousands of users every day, and we would love to hear from you if you have additional information about ERF file formats, example files, or compatible programs. Please use the links below or email us at to discuss further.