Hello @Navneet S.
In computing, a wildcard refers to a character that can be substituted for zero or more characters in a string. Wildcards are commonly used in computer programming, database SQL search queries, and when navigating through DOS or Unix directories via the command prompt.
In software, a wildcard character is a kind of placeholder represented by a single character, such as an asterisk ( * ), which can be interpreted as a number of literal characters or an empty string. It is often used in file searches so the full name need not be typed.