How does one test a file to see if it's a valid XML file before loading it with XDocument.Load()?

Question

I\'m loading an XML document in my C# application with the following:

XDocument xd1 = new XDocument();
xd1 = XDocument.Load(myfile);

but be

Answer 1

Just load it and catch the exception. Same for File.Exists() - the file system is volatile so just because File.Exists() returns true doesn't mean you'll be able to open it.