It sounds like you have autocomplete turned on.

Tools|Options|Edit Tab|Uncheck "enable autocomplete for cell values"

Remember where you changed this setting. Someday, it might make data entry
easier for you.

(I usually keep this disabled, too--I only turn it on when I'm doing lots of
typing of the same stuff.)

JDT wrote:

When I type data into a cell sometimes Excel assumes I want something
I typed previously. Such as, 14b might be entered two cells up, but
now I just want to type 14. Excel puts the b in there whether I want
it or not. I looked through all of the windows to try and find out
how to change this, but I didn't see anything.

How do I keep this from happening? Now let's say I want to keep the
feature. What is the easiest way to get rid of the b?

Thanks.

--

Dave Peterson