Thank you very much, it helped.

"FSt1" wrote:

hi
Sub Coolquicc()
Dim n As Long
n = Cells(Rows.Count, "L").End(xlUp).Row
Range("L1").FormulaR1C1 = "=RC[-3]+RC[-2]/60+RC[-1]/3600"
Range("L1").AutoFill Destination:=Range("L1:L" & n), Type:=xlFillDefault
Range("L1:L" & n).Select
End Sub

regards
FSt1

"Coolquicc" wrote:

Hi there,

I am trying to do the autofill with Macro as follows:

Range("L1").Select
ActiveCell.FormulaR1C1 = "=RC[-3]+RC[-2]/60+RC[-1]/3600"
Range("L1").Select
Selection.AutoFill Destination:=Range("L1:L1173"), Type:=xlFillDefault
Range("L1:L1173").Select

One thing has just been bothering me for so long time, which is how I can
find out the last row and put in the macro instead of just a number like
"L1173" as above, because the last row is always changing every time.

Appreciate any help with it. Thank u.