🚀 go-pugleaf

OLE is fine, but it isn't really what I want. 
Is it possible to use for instance Excel as a Chart Engine, feeding with
data out of my own picking, and updating for instance once a minute?
I wouldn't want to re-invent the wheel and make my own diagram engine, when
all spreadsheet applications have exactly what I want (or rather, my customers).
The easiest way would be to, somehow, create a text-based link to a spreadsheet
(tab-delimited text would be slow, but if it works, fine). If I could get ahold
of the internal data structures of for instance Excel, I could perhaps send
more customized data to be sent on to an Excel chart.
OLE only does objects, no interpretation of the object data is done (from what
I've seen).
Would the Mac system 7 subscribe and publish work, and if so, why can't Windows
do that?

Anyone?
Per