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What are EDMX files and how to open them

Are you having problems opening an EDMX file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your EDMX files.

What is an EDMX file?

EDMX files have multiple uses, and Entity Data Model is one of them. Read more about the other uses further down the page.

Entity Data Model

Visual Studio, an Integrated Development Environment (IDE) for developing computer programs, uses EDMX files to store Entity Framework (EF) metadata.

These EDMX files take the form of XML (Extensible Markup Language) files to specify both their structure and mappings.

How to open EDMX files

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

While we have not verified the app ourselves yet, our users have suggested a single EDMX opener which you will find listed below.

Last updated: January 29, 2023

All known file formats using extension .EDMX

While Entity Data Model is a popular type of EDMX-file, we know of 2 different uses of the .EDMX file extension. Different software may use files with the same extension for different types of data.

Entity Data Model XML Data

We know that one EDMX format is Entity Data Model XML Data. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

Various apps that use files with this extension

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

Help us help others

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