Monty,

One option would be to create a 13th "master" worksheet to contain the data
for your chart. You can create cell references to all 12 sheets from the
master sheet. In other words, the master sheet contains a summary range that
is made up of simple formulas that refer to the data in the other 12 sheets.
Build the chart based on that summary range.

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Regards,
John Mansfield
http://www.pdbook.com

"Monty" wrote:

i have twelve worsheets running on for each month of the year.
how can i extract two or three colums from each one, and put them in a chart.

thanks