I HAVE PREPARED EXCEL FILE WITH 1 MONTH DATA WITH NIFTY SPOT DATA OF 15 MINUTES WHERE I PUT EMA FORMULA
YOU CAN USE IT FOR BACK TESTING FOR INTRA DAY TRADE.
Please download excel file with the following link
( 702 download )
It is not updated file but will give you idea about importance of ema...
You can change ema value mentioned at P1 box.
I dont have updated file, please dont write about link for latest updated file.