I have same problem with large data sets. In earlier Excel versions, they
ran just fine, but in Excel 2007, the program chokes up: e.g., I try to do a
'search-and--replace' in one column, and the systems freezes for a minute
(showing "not responding" in the banner); e.g., I try deleting a column at
the very end of the spreadsheet, and the program freezes, then crashes. I'm
running Excel 2007 on both my desktop and laptop (pretty new PC's with tons
of power and storage), and am having identical problems.

Worst of all, I can't find any helpful hints on the internet to deal with
this. As it stands, Excel 2007 is pretty useless for my needs, and I'll have
to get back to an earlier version. So much for the much-touted million-row
expansion ...

"Norm" wrote:

I have spreadsheets going easily from 16000 to 64000 lines, I used to make
EXCEL 2003 charts by using 3-4 worksheets easily. They were big but ran very
fast. EXCEL 2007 is simply very slow, even if I try to do a chart from
scratch.

Simple line charts, scatter points nothing graphically demanding and my
computer is a P4 full of memory.

Anybody out there with the same problem?

Norm