I just paid $30 for this from Dell OEM support, so I'd like to post it
in case it helps someone else. It's NOT a good idea to delete stuff in
your registry if you don't know what you're doing... but here it is!
Symptoms: Whenever I try to open any Excel 2002 documents or the Excel
2002 program itself, a small error window appears "Unable to read
file. OK/cancel". This message appeared four times and after I hit OK
for the fourth time, my document would appear. Also, initially, a log
file was also opening up at the same time: NicCimIns.log, but my
network admin guy deleted it, and after that, the log no longer
appeared, just the document. //Some people aparently get this same
error message ("unable to read file"), but then their documents also
become corrupted -- this did not happen to me.
Solution: Go into the registry:
Delete the "Excel" key.
We first found the Microsoft knowledge base article 812384, where they
will not give out their fix to this problem over the Net. It says to
call them directly, but also that the charges can be canceled if a
Microsoft Support Professional deteremines that a specific update will
resolve your problem. However, we called Microsoft and they referred
me to Dell for OEM support.