Put it in the first cell, copy the cell, select the next 19,999 and use Edit
/ Paste.

What is your formula, where is it, and where do you want it, and what do you
want it to be when you copy it - Give us an example.

--
Regards
Ken....................... Microsoft MVP - Excel
Sys Spec - Win XP Pro / XL 97/00/02/03

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It's easier to beg forgiveness than ask permission :-)
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"Box" wrote in message
...
How can I automatically paste a formula into existing rows. I need to add
formulas to 20,000 rows. Help!