This app offers the option to store data from any app as a file on the internal storage or SD card. The data must be shared as described below. 1. Open an app which offers to share data and share this data by pressing the share button. 2. Find and press «Share To SD-Card» in the list. 3. If you don't see all available disks, press the menu button in the upper left corner. 4. Select a destination where you want to store the file and press the «Save» button.