I have an .rdl file that I need to open in Visual Studio. When I try to open this file, I got an XML file. However, I am unable to see the designer format.
I don't know which version of Visual Studio is used to create this .rdl file.
Is it possible to open a random .rdl file in Visual Studio and see the designer format and, if so, how can I do that?
Correct, the Report Definition Language is just XML. And, as with any other file, you can just open it (File/Open/File...) in Visual Studio, just like in a text editor. In order to see a designer you need to give Visual Studio a bit of context about what sort of file it is by making it part of a Report Server Project.