Please support slnx

[Mutuduxf]

The .slnx format is a solution file format used by Visual Studio. It is an XML-based format that provides a way to organize and manage multiple projects within a single solution. This format is an evolution of the older .sln format and includes additional metadata and configuration options.

The .slnx file typically contains information about the projects included in the solution, their dependencies, and configuration settings. It helps developers manage complex applications that consist of multiple interdependent projects.