The File Name field at the top of the window contains a file pattern for the File Manager window to match. The file pattern may contain wildcard characters. The default file pattern is *.*, which matches all files in the current directory. You may match subsets of the files in the current directory by typing more specific patterns in the File Name field. For example, *.TXT matches files with names like FILE1.TXT, FILE2.TXT, MYDATA.TXT, etc.