Excel

Need someone to calculate MACD onto excel for me. 

It must be EXACTLY the same calculation as used in Meta trader 4 and 5 default MACD. 

I need to be able to quickly change excel EMA and Signal line numbers and have it all auto recalculate - 

 E.g. I would like 3 cells, one with fast EMA, one with Slow EMA and with MACD SMA, - I would need to be able to quickly just type in a different number into any of these  nd watch the whole thing automatically recalculate.  

let me know if interested.. Thanks