ScriptEngine.ExecuteFile throws FormatException

[Metalnem]

ScriptEngine.ExecuteFile throws a FormatException when running the script from the attached archive. You can run the following code to reproduce it (the path variable should contain the path to the extracted file):

var engine = new ScriptEngine();
engine.ExecuteFile(path);

Found via SharpFuzz.

[paulbartrum]

I've checked in a fix for this, thanks!