B1: =--TEXT(A1,"0000-00-\0\1")
Using your posted list in A1:A6....try this:
Use a Custom Number Format for B1: m-yyyyCode:B1: =--TEXT(A1,"0000-00-\0\1")
and copy down through B6.
Is that something you can work with?
Annoying that there isn't any YM or MY option in text to columns... otherwise that would be the lickety-split way to skin this cat. Thanks for reminding me how to work numeric constants into that 2nd arg in TEXT(), Ron. I'd completely forgotten that.