Convert an array to lower case

'first join all elements, separated by a delimiter of your choice - "++++" In this example
'Then make the entire string lower case
'finally, use split to take apart the string and place it In an array

Dim temp As String , MyArray As Variant
temp = Join(Myarray, "++++" )
temp = Lcase $(temp)
MyArray = Split(temp, "++++" )

'here Is a second approach
Dim i As Long
For i = 0 To Ubound (MyArray)
   MyArray(i) = Lcase $(MyArray)
Next i