I have an addin that adds a custom menu every time its opened, and removes
it when its closed. I've been doing this for quite a long time, and I'm
quite sure that under normal circumstances, the adding and removal of the
menu works like it should.

Here's my question.

When excel is closed, if I peek inside the xlb file and see the name of one
of my menu items, does this mean the toolbar has become corrupted to some
extent?

Is there any way to clean it other than reverting to an older or entirely
fresh copy of the xlb file?

Thanks,

Brian