Error message when opening Excel

[Guest]

I have been getting an error message that reads "08E38100: file format is not
valid" when I open Excel. Once I click OK, everything seems to work fine as
far as I can tell though process time seems a little slow. Once I have Excel
opened for the day, I can open other spreadsheets without getting this
message. It is only on the initial opening of Excel. Would anyone know how
to fix this so I don't get this error message?
Thank you

 

[Jon Peltier]

There may be an invalid file in your XLSTART directory. This is either
C:\Program Files\Microsoft Office\Office X\XLSTART or C:\Documents and
Settings\user name\Application Data\Microsoft\Excel\XLSTART.

- Jon

 

[Guest]

Thank you. I'm not sure if this makes a difference (I forgot to mention it).
I am on a network system and only the MIS department has access to some of
these areas but I'm going to give them your suggestion since they haven't
been able to get this fixed yet. Thanks again.