in c#, how can i build up array from A to ZZ that is similar to the way that excel orders columns

Question

i am looking for code that can generate an array where the first item is A, then B, then C . . .after Z i

Answer 1

Here's one way. :)

string[] values =
  Enumerable.Range(0, 27 * 26)
  .Select(
    n => new String(
      new[] { (char)('@' + n / 26), (char)('A' + n % 26) },
      n < 26 ? 1 : 0, n < 26 ? 1 : 2
    )
  )
  .ToArray();