Abstract: This application discloses a method and an apparatus for viewing a previously used file. A first user interface of a parent application is displayed by a first terminal. The first user interface is configured to display at least one sub-application that is selectable by a user. The at least one sub-application is configured to run inside the parent application. An instruction to start a target sub-application of the at least one sub-application is received based on a user selection via the first user interface. An information obtaining request is transmitted to a server corresponding to the target sub-application. File information of previously used files on the second terminal is received from the server. The previously used files are uploaded by the second terminal to the server. A second user interface of the target sub-application is displayed. The second user interface is configured to display the file information of the previously used files on the second terminal.