It is a formal way to greet someone and ask about their well-being.
Here's a breakdown:
* Como: This means "how"
* Esta: This is the third-person singular present tense form of the verb "estar," meaning "to be"
* Ud: This is the formal singular form of "you"
So, "Como Esta Ud" literally translates to "How is you (formal)."
You can also find this phrase spelled as "Como está Ud" or "Cómo está Ud."
It's important to note: "Como Esta Ud" is used when speaking to someone you don't know well, someone older than you, or someone in a position of authority.
For a more casual greeting, you can use "Cómo estás" (how are you? informal) or "Hola, ¿qué tal?" (Hi, how are you?)