excel add-ons?

does anybody know where I can get chart function add-ons for excel? preferably for free?

it would have the basic indicator functions such as ema, lwma, bb bands, rsi, etc. for excel.

thanks

more specifically technical analysis add ons

Here is a site I ran across some time ago. I haven't had the opportunity to investigate it further but perhaps you can do so. Please let us know of your findings.
http://www.ta-lib.org/
Read the documentation area fo ra quick synopsis

Mgreen, thanks, that is a nice site. Using a dde interface, that will be nice for real honest backtesting. from my broker's data.

i have added the add ons but I have no clue how to use it now..like i tried the ema function on set of numbers..and it's just giving me n/a values

damn it

The documentation tells you how to use it...

Hey MrGreen

Thanks a bunch for sharing that site with us! Very much appreciated!

cool! i use the functions to double check my indicator values!

i'm loooovin it