Gavin,

Yes, Excel offers several options.

Depending on your data, you could first look at Excel's charting trendline
options. After you create a chart, click on it once. Then go to the
standard toolbar and select Chart - Add Trendline.

Next, this site shows how to calculate a best fit line via linear regression
calculations:

http://www.pdbook.com/index.php/exce...ar_trendlines/

http://www.pdbook.com/index.php/exce..._new_x_values/

Finally, take a look at Excel's INDEX, LINEST, and CORREL functions. Also,
if you have the Analysis ToolPak installed, Excel will calculate all of the
regression coefficients for you.

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

"Gavin" wrote:

I would like to put a Science graph on the computer but I need to use a line
of best fit is is possible to do this with any Microsoft producat in
particular exel?