.RESX

.RESX file extension

This is the basic program to work with .RESX extension

SharpDevelop

SharpDevelop Resx File

SharpDevelop is an Integrated Development Environment whose purpose is to help users complete their .NET development projects by using various coding formats, such as ASPS, CD, BOO, CS, EDMX, XML, SRD, or SDPS. The programs can be developed using various programming languages, such as Boo, IronPython, IronRuby, VB.NET, C#, or F#... (more)

The program works with the following extensions: xml, cs, vb, sln, cmbx, prjx, xfrm, resx, vbproj, pyproj, csproj, booproj and xevgenxml

.RESX extension is also supported by the following programs:

Microsoft Visual Studio .NET

Microsoft Visual Studio .NET .NET XML Resource Template

Powerful debugger, drag-and-drop components,excellent tutorial support....
Microsoft Visual Studio Enterprise Edition

Microsoft Visual Studio Enterprise Edition .NET XML Resource Template

An application development kit with several handy utilities uncluded.
Microsoft Visual Studio.NET

Microsoft Visual Studio.NET .NET XML Resource Template

Borland Delphi

Borland Delphi Resx File

Embarcadero Delphi XE7 allows you to develop highly connected applications.