Find and Highlight UTF-8 Words in Excel

I need to identify characters/words that are UTF-8. I am just trying to either highlight a cell, a word or a letter that indicates it is UTF-8. I currently have the data stored in Microsoft Access and I will export it Microsoft Excel.

The ultimate goal would be to try to separate UTF-8 words from not UTF-8 words.

UTF-8 examples:
Höhenstraße 27
Drève Richelle, 161 BatG
Rue du Trône 108

Non-UTF-8 Examples:
Chemin du Foriest
300 avenue Provinciale

Any assistance would be great.