WSDL uses XML markup. The format jointly developed by Microsoft and IBM. W3C now maintains the format. W3C manages various Web standards. The standards are recommendations. They are non-obligatory. However, commonly accepted in the industry as consensus.
WSDL files belong to Visual Studio. The files contain description of a web service. The description includes name, protocol, operations, arguments, expected response. Written in Web Services Description Language based on XML.
The wsdl file extension relates to Microsoft Visual Studio. It is an integrated development environment. The wsdl file contains data in Web Service Description Language. Use Visual Studio to open. The file type can’t convert to other formats. This is the case for system, configuration and temporary data files. Exclusive to one software. Used for its own purposes.
Specifications define protocols and WSDL extensions for those protocols or formats. See examples of extensibility elements as part of WSDL specification. WSDL files require another file. It provides bindings for parameters. This allows reuse with bindings. Many technologies interface with services. Like ASP.NET, C/C++ and Java. NOTE: Visual Studio includes Web Services Description Language Tool. It creates WSDL files.
Associate the extension to software in Registry. Many files contain simple text data. Information on WSDL file type. Open and convert. Issues and online tools. Describes types, messages, operations and protocols. Abstract level. Therefore usually require file with links for settings.
Eclipse IDE
SoapUI
Microsoft Visual Studio