.EDMX

.EDMX file extension

This is the basic program to work with .EDMX extension

Microsoft Visual Studio 2008

Microsoft Visual Studio 2008 ADO.NET Entity Data Model Designer

Microsoft® Visual Studio® 2008 delivers on the Microsoft vision of smart client applications by enabling developers to rapidly create connected applications that deliver the highest quality, rich user experiences. With Visual Studio 2008, organizations will find it easier than ever before to capture and analyze information to help them make effective business decisions... (more)

The program works with the following extensions: h, i, c, s, mk, vb, rc, ad, dd, cs, cd, fs, dsp, svc, fsi, cur, vcp, dsw, odh, vcw, dtd, trx, odl, fsx, vdp, hpp, rc2, wiq, asm, hxx, rct, xdr, idl, res, cod, xsd, inc, rgs, inl, ldd, cpp, lst, sdl, mak, cxx, map, mtx, def, tlh, dmp, mdp, srf, tli, asax, ascx, edmx, ashx, xoml, wsdl, asmx, rdlc, host, aspx, xmta, xslt, dbml, skin, mdmp, vsmdi, disco, psess, fsproj, config, ipproj, master, sitemap, snippet, webtest, accessor, loadtest, coverage and vstemplate

.EDMX extension is also supported by the following programs:

Microsoft ASP.NET AJAX Templates for Visual Studio 2008

Microsoft ASP.NET AJAX Templates for Visual Studio 2008 ADO.NET Entity Data Model Designer

This release contains project templates for using Visual Studio 2008.
Microsoft Windows SDK for Visual Studio 2008 Tools

Microsoft Windows SDK for Visual Studio 2008 Tools ADO.NET Entity Data Model Designer

Microsoft Silverlight Tools for Visual Studio 2008

Microsoft Silverlight Tools for Visual Studio 2008 ADO.NET Entity Data Model Designer

It provides a Silverlight project system for developing Silverlight applications.