Creating a dynamic chart is difficult, there should be a dynamic chart wizard
that will create it with you.
Also if my serie value is a name range, it would be nice to just right the
Name range directly not with the complex formula.

='xyz.xlsx'!name range

but just name range.

xyz and name range is a fictive value.


----------------
This post is a suggestion for Microsoft, and Microsoft responds to the
suggestions with the most votes. To vote for this suggestion, click the "I
Agree" button in the message pane. If you do not see the button, follow this
link to open the suggestion in the Microsoft Web-based Newsreader and then
click "I Agree" in the message pane.

http://www.microsoft.com/office/comm...excel.charting