a little change here for you
Code:
Sub DescTruncate2()
Dim LastRow As Long
Dim rngNew As Range
LastRow = Cells(Rows.Count, 12).End(xlUp).Row
Set rngNew = Range(Cells(1, 3), Cells(LastRow, 3))
rngNew.FormulaR1C1 = "=LEFT(RC[9],2048)"
rngNew.Formula = rngNew.Value
Set rngNew = Nothing
End Sub
you may find this quicker if you have lots to do see what you think
Dave