Sub ClearFirstTwo()
Dim rng as Range, cell as Range
set rng = Range(cells(1,1),Cells(1,1).End(xldown))
for each cell in rng
cell.value = Right(cell.value,len(cell.value)-2)
Next
End Sub
This will make the changes in place.
Test it on a copy of your data.
If the spec is any letters to the right of the period
Sub ClearToPeriod()
Dim rng as Range, cell as Range
Dim iloc as Long
set rng = Range(cells(1,1),Cells(1,1).End(xldown))
for each cell in rng
iloc = Instr(1,cell,".",vbTextCompare)
if iloc <> 0 then
cell.value = Right(cell.value,len(cell.value)-iloc)
end sub
Next
End Sub