Setting the display of File Manager
Android: Tap 
(*) - [Settings] – [Other settings] – [Display] on the Home screen.
iOS: Tap 
- [Other settings] – [Display ] on the Home screen.
* The [] icon is not displayed on the screen of some Android devices. If the [] icon is not displayed on your screen, press the main menu button located outside of the screen.
You can set the following items.
- Thumbnail display ON/OFF switch
When this is set to OFF, the thumbnail display to the left of photo files on the data list screen is replaced by the icon. The thumbnail list screen is not affected.
- File extension associations (Android)
Tap this to display the file extension list.
Tap an item to display the [Edit association] screen.
Set the file format and application to open the file, then tap [OK]. Files of the same file extension will be played with the selected application.
If file extensions are not associated with applications, the action in Selecting an application (Android) will be carried out.
Note
- Editing association is not possible when no compatible applications are installed.