Hi Conan

Look here
http://www.cpearson.com/excel/events.htm

Set calculation to manual in the large books and save them

See also this site
http://www.decisionmodels.com/optspeedd.htm



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Regards Ron de Bruin
http://www.rondebruin.nl



"Conan Kelly" <CTBarbarin at msn dot com wrote in message ...
Hello all,

We have some large workbooks that can take quite a bit of time to calculate when they are opened, if they don't lock up Excel.
The problem is if we have other unsaved workbooks open when we open one of these AND it crashes Excel, we lose the changes made to
these other workbooks.

I was wondering if the Workbook_Open event occurs before the sheet starts to calculate? If I put code in this event to turn off
Automatic Calculation, will it keep Excel from calculating?

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Thanks for any help anyone can provide,

Conan Kelly