One way would be to set a macro in the Workbook Open event
Private Sub Workbook_Open()
Application.Calculation = xlCalculationManual
End Sub
Right Click on a Sheet Tab of the Workbook
Choose View Code
Double Click on ThisWorkbook and paste the macro into the right hand pane
Save the Workbook
Now, whenever you open that workbook, calculation will be set to manual
Excel takes the Calc mode of the first workbook opened during a session.
There is no registry setting to control this.
I would suggest sticking Roger's code into your Personal.xls which opens first
when you start Excel.
Gord Dibben Excel MVP
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