Time stamp Data entry in Excel

[AHKOVC]

I am trying to record date and time in a cell whenever data is entered into a worksheet. I hav tried "+@LastModified()" but it is not doing what I want. Any suggestions ?

[#2]

@AHKOVC 

You need VBA for this. A formula cannot do what you want.

Right-click the sheet tab.

Select 'View Code' from the context menu.

Copy the following code into the worksheet module:

Private Sub Worksheet_Change(ByVal Target As Range)
    Application.EnableEvents = False
    ' Change C1 to the cell in which you want the time stamp
    Range("C1").Value = Now
    Application.EnableEvents = True
End Sub

Switch back to Excel.

Save the workbook as a macro-enabled workbook (.xlsm).

Make sure that you allow macros when you open the workbook.