System.OutOfMemoryException when loading a heavy XAML file, how to fix this ?

[pavilion]

I modeled an aircraft in Blender (people learning WPF should know this program, I use it to create 3d things). Then I export it to XAML, ahh more than 25Mb actually
Then I opened it using Visual Studio XAML editor and the Exception occured, how to fix this ?? I want to put this nice aircraft in my WPF program