10. A file search method that searches for a file, by using a file search apparatus having a display unit that displays an image and an installation module to which a storage medium storing object files, based on one or more searched-keywords associated with object files and one or more searching-keywords selected by a user, the file search method comprising the steps of: (a) setting the searching-keywords according to an instruction by the user; (b) when the searching-keywords are set by the setting module and the storage medium is installed to the installation module, acquiring the searched-keywords associated with respective object files from the storage medium; (c) performing collation as to whether each of the searching-keywords set by the step (a) matches any of the searched-keywords acquired by the step (b); and (d) controlling the display unit to display in a manner that results of the collation by the step (c) is recognizable, wherein the file search apparatus has an information storage module that stores icons in association with the respective searched-keywords; wherein the step (d) reads an icon associated with a searched-keyword corresponding to each of the searching-keywords that are selected from the searched-keywords, from the information storage module, and displays the read icons as the searching-keywords.
16. The file search method according to claim 10 , wherein the step (b) acquires the searched-keywords from a predetermined keyword field included in metadata of the object files.