Save and load a class

[jimpie]

Hey,

I need a code so I can save this class. The problem is that it cant be done with XML-serialazation because it as initial arrays. [Attribute(50,50), Tile(50,50) etc.)
How will I save/load this class with initial arrays?

Public Class Map

    Public Attribute(50, 50) As AttributeRec
    Public Tile(50, 50) As LayerRec

    Public Npc(50) As MapNpcRec
    Public Item(50) As MapItemRec

    Public Structure MapItemRec

        Public X As Integer
        Public Y As Integer
        Public ItemID As Integer
        Public ItemAmmount As Integer

    End Structure

    Public Structure MapNpcRec

        Public SpawnX As Integer
        Public SpawnY As Integer
        Public X As Integer
        Public Y As Integer
        Public NpcID As Integer

    End Structure

    Public Structure LayerRec

        Public Ground As TileRec
        Public Mask As TileRec
        Public Mask2 As TileRec
        Public Fringe As TileRec
        Public Fringe2 As TileRec

    End Structure

    Public Structure TileRec

        Public imgX As Integer
        Public imgY As Integer
        Public Tileset As Integer

    End Structure

    Public Structure AttributeRec

        Public Attribute As Integer
        Public Value As Integer

    End Structure

End Class

thanks