Printing out array as a table c#

Have a look at this post here: Format Strings in Console.WriteLine method

Padding will definitely be your answer. Depending on your needs, you can pad them at the Employee Class level on the getter in your properties.

Or do something like this:

var name = "Ronald Raymond";
var number = "239824";
var rate = "16.43";
var hours = "35.00";
var gross = "1256";

var formatted = string.Format("{0,-15}", name) +
    string.Format("{0,-7}", number) +
    string.Format("{0,-7}", rate) +
    string.Format("{0,-7}", hours) +
    string.Format("{0,-7}", gross);

Console.WriteLine(formatted);

If you look into the String.PadRight() method, you will see that it pads a string with whitespace characters until it is a specified width. We can do this with the name field, choosing some reasonable maximum name length (perhaps 25?) to size the column.

Also, instead of a PrintEmployee method, you might consider overwriting the ToString() method on your Employee class, so the default of employee.ToString() will look the way you want. For example:

public class Employee
{
    public string Name { get; set; }
    public int Number { get; set; }
    public double Rate { get; set; }
    public double Hours { get; set; }

    public override string ToString()
    {
        return $"{Name.PadRight(20)} {Number} {Rate:00.00} {Hours:00.00}";
    }
}

Now that we have the names displayed in a 20-character column (and the doubles are displayed with proper decimal places), things should line up well:

static void Main()
{
    var employees = new List<Employee>
    {
        new Employee {Name = "Bruce Wayne", Number = 123456, Rate = 25.88, Hours = 35.5},
        new Employee {Name = "Clark Kent", Number = 232344, Rate = 25.88, Hours = 38.75},
        new Employee {Name = "Diana Prince", Number = 657659, Rate = 27.62, Hours = 30.25},
        new Employee {Name = "Hal Jordan", Number = 989431, Rate = 23.14, Hours = 44.25},
        new Employee {Name = "Barry Allan", Number = 342562, Rate = 25.12, Hours = 25.50},
        new Employee {Name = "Arthur Curry", Number = 565603, Rate = 21.09, Hours = 23.75},
        new Employee {Name = "John Jones", Number = 812984, Rate = 18.99, Hours = 32.75},
        new Employee {Name = "Dinah Lance", Number = 342988, Rate = 18.99, Hours = 34.50},
        new Employee {Name = "Oliver Queen", Number = 340236, Rate = 17.45, Hours = 41.25},
        new Employee {Name = "Ray Palmer", Number = 120985, Rate = 24.75, Hours = 40.00},
        new Employee {Name = "Ronald Raymond", Number = 239824, Rate = 16.43, Hours = 35.00},
        new Employee {Name = "Carter Hall", Number = 657123, Rate = 19.34, Hours = 42.75},
        new Employee {Name = "Shayera Hol", Number = 761742, Rate = 16.73, Hours = 38.50},
    };

    foreach (var employee in employees)
    {
        Console.WriteLine(employee);
    }

    Console.Write("\nDone!\nPress any key to exit...");
    Console.ReadKey();
}

Output

For the fun of programming, you could also do this:

String FixStringLength(String input, int length) {
   Char[] temp = new Char[length];
   for(int i = 0; i < length; i++){
      if(i < input.Length){
         temp[i] = input[i];
      }
      else{
         temp[i] = ' ';
      }
   }
   return new String(temp);        
}

And then

Console.WriteLine(FixStringLength(name, 30) + number);