Automatic test for Excel export

I have a simple method, which takes an IEnumerable of an object and export that as an Excel workbook. The object could be something like a student (to use the classic example).

public class Student 
{
    public string Name { get; set; }
    public int Age { get; set; }
    public int StudentId { get; set; }
}

And then the method I need to test

public void ExportStudents(IEnumerable<Student> students)
{
    // This method will save the students to an Excel workbook with a known name
    ...
}

I would like some sort of test of this, but the best I can come up with is a console application that you can run manually, something like this:

public void Main() 
{
    var students = new List<Student>
    {
        { Name = "John Doe", Age = 19, StudentId = 1 }, 
        { Name = "Max Power", Age = 21, StudentId = 2 },
        ...etc
    }

    // Export the list as a workbook
    WorkbookExporter.ExportStudents(students);
}

And then inspect the workbook manually. But this seems like a very slow and primitve way of testing. How do you test something like this - or to take another example, something sending an e-mail - in a smarter way?