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.EDMX File Extension

File TypeADO.NET Entity Data Model Designer File

3.3 (4 Votes)
CategoryDeveloper Files

What is an EDMX file?

Data model file created by the Entity Data Model Designer component of Microsoft Visual Studio; stores the schema for a database, including entities (e.g., database tables), their fields, and their relationships (e.g., one-to-one and one-to-many).

More Information

EDMX files are used for generating SQL Server database schemas. They contain three metadata files: 1) the conceptual schema definition language (CSDL) file, 2) the store schema definition language (SSDL) file, and 3) the mapping specification language (MSL) file.

NOTE: To create EDMX files, you need a version of Visual Studio that includes the ADO.NET Entity Data Model Designer.

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Programs that open EDMX files

Updated 7/9/2010

About EDMX Files

Our goal is to help you understand what a file with a *.edmx suffix is and how to open it.

The ADO.NET Entity Data Model Designer file type, file format description, and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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