help needed in excel 2010 pivot chart

[leonidas alexandar]

Hi Everybody,

I am using EXCEL 2010 in my system and I am working on some sales data
In view of the large data, I wanted to group my timelines with month
instead of dates. So, I went into PIVOT TABLE TOOLS in the menu
selected OPTIONS to use the GROUP FIELD function, but the GROUP FIEL
function is disabled in my Excel 2010. I am unable to activate/enabl
this GROUP FIELD function .

I would really appreciate if folks here can let me know on how t
enable/activate the GROUP FIELD function.

Thanks and Cheers