.EDMX

📌 In all of the preconditions, the .EDMX file container can basically rely on the data model files composed and opened up by the Entity Data Model Designer, an internal component of Microsoft Visual Studio IDE environment. Precisely, the .EDMX extension arrangement stores the proper schema pattern for a certain database, including the relationships of entities (for instance, many-to-many, or one-to-one), the fields, or the records data (such as database tables). .EDMX data algorithm serves for generating distinguished SQL Server database schemas. As a principle claims, the .EDMX file objects are typically composed of three metadata resources:

• the CSDL entry, which describes the conceptual open based layout of the schema description;
• the SSDL record, which explicitly defines the store schema definition rules and methodologies
• the MSL object, which directly manages the mapping specification language terms and makeup.

In order to create new .EDMX data items, you are required to download an edition of Microsoft Visual Studio that includes the ADO.NET Entity Data Model Designer modular add-on.

How to open an .EDMX file?

📌 All of the noted .EDMX file format instances are magnificently supported, sustained, operated, and opened by Microsoft Visual Studio package of actual builds and editions.