While using ekahau cloud it happened to me that the synchronization failed so here in 5 easy steps how to restore Ekahau files directly from the ipad.
1. Connect the ipad to the PC and start Itunes.
2. Use file share to save the Projects folder under the Ekahau app.
3. Open the folder and select which project you want to restore based on date.
4. save this folder as .zip
5. change the file extension to .esx