An organization process execution portion 64 is provided in a file management system 1 that has a function to manage files and search folders and a function to search files. When a search condition has been newly designated by a user, if the designated search condition does not match the search condition of any existing search folder, the organization process execution portion 64 generates a new search folder in which the designated search condition is indicated. If the designated search condition matches the search condition of an existing search folder, a new search folder is not generated.