File management method and program that manage multiple files as single combination file

摘要

A file which is virtually combined multiple files (a virtual combination file) is displayed as a thumbnail S. The part "A' indicates the number of files that are virtually combined and the number of the file currently being displayed as a thumbnail S. The user can change the file that is displayed as a thumbnail S by operating the part "A'. The part "B' indicates the number of files that are related to and grouped with the file being displayed as a thumbnail S and the number of the file currently being displayed as a thumbnail S. The user can easily keep track of the files that are virtually combined and the files that are registered as belonging to the same group as any of these files.