ToolsOptionsCalculation, check Manual.
In VBA: Application.Calculation = xlManual

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Kind regards,

Niek Otten

"Volker Hetzer" wrote in message
...
Hi!
We've got a sheet with lots of data and want to insert lots of
formulas using VBScript. Now, every time we insert a formula
the whole sheet gets recomputed and the thing runs three hours.
Is there a way to make Excel stop calculating and turn it on later?
Lots of Greetings!
Volker