It is a polite and formal expression used to express pleasure in meeting someone for the first time, similar to "Nice to meet you" or "It's a pleasure to meet you" in English.
Here are some examples of how it is used:
* "Enchanté, Madame." (Delighted to meet you, Madam.)
* "Enchanté, je suis Pierre." (Delighted to meet you, I am Pierre.)
* "Enchantée de vous rencontrer." (Charmed to meet you.)