Toast document is used in android based systems for displaying the message to the user. The file format used for this document is DISC.

This file is used to display the feedback during the operation of any application. Each toast file is associated with a specific application and can only be used by that one. The notification related to the application is known as toast and the space used up by the toast is equal to the space used up by the text shown as the notification. The toast file is displayed when a specific action is triggered by the user or the application when the application is running.