Hi Mitul
Providing I have understood you correctly you can use a Dynamic named range.
1. Go to Insert>Name>Define
2. Type a name in the "Names in workbook" box
3. In the "Refers to" box put this formula:
=OFFSET($A$1,0,0,MONTH(TODAY()),1)
4. Click Add, then OK.
This range will exand down by 1 row every month. So as it is now April the range will incorporate A1:A4 (4th Month). You can easily expand the range to cover more than just Column A by changing the last "1" to a 2 or more.
I have some more examples of dynamic ranges and Chart tips on my Website under "Dynamic Ranges" and "Chart Tips and Tricks"
Dave
OzGrid Business Applications
I tried the formula though I am not sure, how to make it work. It does not work. Can I get a little more assistance Please. How do I make charts to do what I want. Update the last 12 months.
Mitul