Characters that represents one or more characters. The question mark (?) wildcard can be used to represent any single character, and the asterisk (*) wildcard can be used to represent any character or group of characters that might match that position in other file names.
Use wildcard characters as placeholders for other characters when you are specifying multiple files. For example:
To import all data files in the "Import" directory beginning with ACHFlat, enter the path C:\Import\ACHFlat*.*
To import all data files in the "Import" directory, enter the path C:\Import\*.*