If Frank's suggestion doesn't work, the following post by Dave Peterson
may help:

http://groups.google.ca/groups?&selm...C08F%40msn.com


Marilyn wrote:
Converted a .wb3 Quattro Pro file by saving as Excel v5/7 and some cells
cannot be formatted. Tried unprotecting all of them before conversion.


--
Debra Dalgleish
Excel FAQ, Tips & Book List
http://www.contextures.com/tiptech.html