iTunes file sharing
Transfer files and folders from computer to FileExplroer by using iTunes File Sharing.
1. Plug your iPhone/iPad in computer.
2. Open iTunes and navigate to your iPhone/iPad.
3. Click "File Sharing" item on left side of iTunes.
4. Scroll down right side to File Sharing section. Refer to the screenshot below.
5. Drag the folders/photos from Mac Finder or Windows File Explorer to "FileExplorer Documents" section.
NOTE: The files copied from iTunes can be found in FileExplorer -> My Files -> On My iPhone/iPad.