A more thorough explanation:

Definition: Viz. is a term that means "namely," "that is to say," "as follows," or "to wit." It is used to provide more specific statements to illustrate the original point. After making a statement, a comma may be added, followed by viz., followed by more specific statements.

Origin: Viz. comes from the Latin word videlicet, which is a contraction of videre licet ("it is permitted to see.")

Example 1: The company has three departments, viz. marketing, sales, and finance.

Example 2: The store sells various types of fruits, viz. apples, bananas, and oranges.

In example 1, the term viz. is used to provide more specific information about the three departments of the company. In example 2, viz. is used to list the specific types of fruits that the store sells.