Excel on Mac 10X.

[Hal]

Using MAC 10.3. Get this message when opening Excel: VB
Class not registered looking for object with clsid:
(ac9f2f90-e877-11ce-9f68-00aa00574a4f). When he tries to
open a spread sheet get message Object library not
registered.

 

[JE McGimpsey]

First, try repairing disk permissions - if you don't know how, see
http://www.mcgimpsey.com/macoffice/excel/troubleshooting.html

Next, if it's installed, try removing the Acrobat PDF Maker plug-in from
the Microsoft Office X:Office:Startup:Excel folder.

If that doesn't work, look for any other files in that folder and move
any that you find. Restart to confirm that they are the cause. If so,
move them back one at a time until you find the offending file.

It's also possible that you have an add-in loaded (Tools/Add-ins) that
is corrupted.