You might also look at
http://www.mvps.org/dmcritchie/excel/slowresp.htm
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HTH,
David McRitchie, Microsoft MVP - Excel [site changed Nov. 2001]
My Excel Pages: http://www.mvps.org/dmcritchie/excel/excel.htm

"Jim Thomlinson" wrote
Give this link a look.
http://www.decisionmodels.com/calcsecrets.htm

"bill gras" wrote:
Excel takes for ever to open my workbook. and excel calculates all cells on
opening my workbook, it also re calculate all cells when i just click on a
cell with a formula in it . How come ? Does any one know how to fix it ?