If you have a lot of formulas either in the sheet or that calc off yoru
sheet, you can go to Tools Options Calculation Manual

then, you can do your deletions or Find/Replaces and change back to automatic.

"Floydene" wrote:

I am working in a largish Excel file on Windows XP. It's about 312,000
records long. I am trying to delete the last 50,000 or so records and
everytime I select the records and hit delete, Excel gets hung up and I have
to force quit. Same thing when I try to do a Find/Replace on one of the
columns. I tried rebooting my machine. My husband suggested turning off our
security software, since it is new and perhaps the cause of the problem?
Anyone else have a similar situation?

Many thanks in advance,