Calc mode can be changed to Manual under Tools, Options, Calculation. After
doing so press F9 whenever you want Excel to calculate.

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Jim
"wx4usa" wrote in message
ups.com...
I have a data entry sheet with 25 columns of data. The data is both
text and numeric. I have 5 reports on separate worksheets in the same
workbook. QUESTION: when I get 1000 or more lines of data, excel slows
because each time I enter data in a cell, the cells recalculate. Can
I fix this by turning off auto calculate and by also taking the
reports to individual workbooks? Any thoughts would be appreciated.