These appear to be soft hyphens. Soft hyphens are always displayed in cells because cells don't wrap their content naturally. They disappear in web pages and when pasted into word processors because their text formatting engines support soft hyphenation.
In your case, there are no soft hyphens in your title, only in the body text.
The simplest way to remove the soft hyphens forcibly would be to replace them all with empty strings, but if you want to keep the soft hyphens while hiding them in areas that don't wrap, I'm not entirely sure of a solution, as cells in Excel don't support soft hyphenation at all.