- Improvement
	- Save as: Now we it cheks that the name of the file follow the next rules:
		getName().length() == 11 && getName().startsWith("gen") && getName().endsWith(".dat")
- Improvement
	- Save as: Now we it cheks that the name of the file follow the next rules:
		getName().length() == 11 && getName().startsWith("gen") && getName().endsWith(".dat")