After XP Service Pack 3 problem, Excel won't start

I've had all kinds of crashes with Office XP over the
past year. I can't find my CD (I have move since
orginally install). So, I find a place where I can
download an "admin" version of update - says the CD isn't
needed. I download and start update. Sure enough it
DOES ask for the CD. I don't have it, so the install was
cancelled. NOW, I can not use EXCEL. When I try to open
Excel it starts the installer program and asks for the
CD. Wish I would have known that I was STILL going to
need the CD BEFORE I started the process. Now what? I
need Excel RIGHT NOW. Thank you very much Microsoft.

I am from the MS Excel support department at http://www.enterpriseprojectconsulting.com and we would be happy to assist you in resolving your issue.

Thank you,

Enterprise Project Consulting