Try this
<font face=Courier New><br><SPAN style="color:#00007F">Sub</SPAN> Add_Zeros_Below_backtab()<br> <SPAN style="color:#00007F">Dim</SPAN> Found <SPAN style="color:#00007F">As</SPAN> Range<br> <SPAN style="color:#00007F">Dim</SPAN> FirstAddr <SPAN style="color:#00007F">As</SPAN> <SPAN style="color:#00007F">String</SPAN><br> <br> Application.ScreenUpdating = <SPAN style="color:#00007F">False</SPAN><br> <SPAN style="color:#00007F">With</SPAN> Range("A1", Range("A" & Rows.Count).End(xlUp))<br> <SPAN style="color:#00007F">Set</SPAN> Found = .Find(What:="[backtab]", After:=.Cells(1, 1), _<br> LookIn:=xlValues, LookAt:=xlWhole, _<br> MatchCase:=False, SearchFormat:=False)<br> <SPAN style="color:#00007F">If</SPAN> <SPAN style="color:#00007F">Not</SPAN> Found <SPAN style="color:#00007F">Is</SPAN> <SPAN style="color:#00007F">Nothing</SPAN> <SPAN style="color:#00007F">Then</SPAN><br> FirstAddr = Found.Address<br> <SPAN style="color:#00007F">Do</SPAN><br> <SPAN style="color:#00007F">With</SPAN> Found.Offset(1)<br> .NumberFormat = "@"<br> .Value = Right("00000" & .Value, 6)<br> <SPAN style="color:#00007F">End</SPAN> <SPAN style="color:#00007F">With</SPAN><br> <SPAN style="color:#00007F">Set</SPAN> Found = .FindNext(After:=Found)<br> <SPAN style="color:#00007F">Loop</SPAN> <SPAN style="color:#00007F">While</SPAN> Found.Address <> FirstAddr<br> <SPAN style="color:#00007F">End</SPAN> <SPAN style="color:#00007F">If</SPAN><br> <SPAN style="color:#00007F">End</SPAN> <SPAN style="color:#00007F">With</SPAN><br> Application.ScreenUpdating = <SPAN style="color:#00007F">True</SPAN><br><SPAN style="color:#00007F">End</SPAN> <SPAN style="color:#00007F">Sub</SPAN><br></FONT>