Credit for below goes to Mary Sauer MSFT MVP
<snip>
If you do not have the installation cd and want to solve this issue
follow these steps: (works most of the time with all sku.cab files)
1. Click on start==>run==>type "excel /s" without quotations and click
ok.
2. Once Excel is up in safe mode with the error message in front, hold
down ctrl+Alt+Delete keys on your keyboard to bring the task manager up.
3. Click on the processes tab==>look for msiexec.exe (only the one next
to your user name), click on it and end the process.
4. Excel should be running without an error message now==>close Excel in
safe mode==>reopen it one more time in safe mode to check if it is
opening with no error message.
5. Close Excel /s and open Excel normally, it should work fine.
The above solution was previously supplied by (e-mail address removed)
(Bahboosh) on other dedicated Newsgroup.
<end snip>
Also see the following
Credit for the following goes to to LVTravel
<snip>
This is for "Office Professional Enterprise Edition 2003 SKU011.CAB"
If you don't have that version installation CD or the network path to the
original install, this will occur. Since this is for an Enterprise edition,
I would assume that this program was installed at work and is not a personal
copy. (If this is a personal copy, unless it is a home use license purchase
from your company, the license was probably sold illegally and would be
considered a pirated copy.)
From Microsoft source see what is said at
http://support.microsoft.com/kb/896866.
<end snip>