I want to delete all values starting from A2:O2 and LOWER , i.e. A3:O3, A4:O4, A5:O5
  A    B    C     ....         O        P    Q
1 ..............................
2 deletedeletedeletedeletedelete
3 deletedeletedeletedeletedelete 
4 deletedeletedeletedeletedelete
5 deletedeletedeletedeletedelete
I am not sure how to do this
Sub DeleteLower()   
    Range("A2:O1048576").Select
    Selection.SpecialCells(xlCellTypeConstants, 23).Select
    Selection.ClearContents
end sub
How do I explain that I need the range of "A2:0 infinity " "A2:O1048576"  ? 
 
    