Activate macro based on cell value

L

LB79

I want to have a macro that constantly plays in the background lookin
for a change in a cell value. When the cell value changes a secon
macro activates. So far i have this but its not really working

can anyone help?

Sub Auto_Open()

Do

If Range("C1") > ("0") Then
Application.Run "'Workbook.xls'!Macro"
Else
Exit Sub
End If

Loop

End Su
 
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