Send files to other apps
If you have a file stored in Onedrive that you want to use in another app, tap the menu button and select Share.
In Android, pull up the screen to show all the apps that can accept the file and tap the one you want to use. On Apple devices, swipe left and right over the two rows of icons and select the one you want.
To share files with another app on your device, select it from the Share menu