diacritics

Hello. I have a large Excel file that contains first and last names. Some of the names have special characters called diacritics, such as a tilde Ñ or ñ. Is there a way to easily scan the names to look for diacritics -- other than a basic search? The issue is that if I load the file to a process...

I'm trying to use Excel for a Chinese vocabulary list. The Chinese characters aren't the problem at the moment: what I'm trying to solve is the pinyin, i.e. the pronunciation shown in Western alphabetic letters, with accents (diacritics) to show the four tones. For example, the word for...