Western Digital SanDisk SecureAccess IXPAND 3.0 32GO Quick Start Manual page 19

2
Drag and drop music, videos, photos, and documents between your Mac
computer and the iXpand Flash Drive window.
Delete files
1
Connect the iXpand Flash Drive to your iPhone/iPad.
2
Press "Select" and choose the files you'd like to delete from the drive.
3
Press at the bottom of the screen.
You can swipe left on a file icon in list view and choose "delete" to easily remove
individual files.