A method and system for handling files with mobile terminals and a corresponding computer program and a corresponding computer-readable storage medium, which can be used in particular for handling e-mail attachments and the like on mobile terminals (PDAs, Smartphone, mobile phone) are described. According to the described method, an original file is stored on a data processing device different from the mobile terminal, and a file corresponding to the original file is generated and transmitted to the mobile terminal. The corresponding file includes information about the storage location of the original file. The original file is handled on the data processing device. An application installed on the mobile terminal processes at least part of the data in the corresponding file according to user input entered on the mobile terminal. First processing device is thereby prompted to execute handling of the original file according to the user input.