Add space for formatting before Xelement in XML file usin C#

Question

I am trying to add one XElement to an XML file where element is already present in a specific format(see the line 2 where space is present before the Student element), however when i add the Xelement, how could i add a space before the Xelement ? See line 5 in below images for difference of space for formatting ?

Creating the Tag here:

    XElement newStudent = new XElement("Student");
    newStudent.SetAttributeValue("Name", "jhonny");
    newStudent.Add(new XText("\n        "));


    XElement stuSetting = new XElement("Subject");
    stuSetting.SetAttributeValue("Name", "C#");
    stuSetting.SetAttributeValue("Mark", "95");

    newStudent.Add(stuSetting);
    newStudent.Add(new XText("\n  "));

Add in the existing file by loading it using XDocument:

        StudentsXmlFile.Element("Students").Add(newStudent);
        StudentsXmlFile.Element("Students").Add(new XText("\n"));

Required:

Currently Getting output: