What is an AXD file?
An AXD file is a web settings file that is used for handling and retrievign embedded resource requests in ASP.NET. It comprises of instructions for retreiving embedded resources such as images, JavaScript (.JS) files, and .CSS files. AXD files are used for injecting resources into client-side pages. This allows client pages to access these resources on server in a standard way.
AXD File Format
AXD files are stored as binary files on server side. It refers to a Web Handler file in ASP.NET which are components that generate responses to specific requests to a web server. AXD files perform custom processing before generating the response based on client-side page requests. These are typically saved as WebResource.axd files.
What is WebResource.axd file?
Most ASP.NET projects save AXD files as WebResource.axd files that allow client-side pages to download resources that are embeddedin an assembly. Your application may face slow performance in case you run it in debug mode as WebResources.axd handler is not cached.