Hi there and welcome
You will not be able to load the Project files from 17 into 14 as it is not backwards compatible, but the actual films. photos, audio ect on your computer you can still use in 14, you would just need to recreate the project all over again.
If you would like any additional information or assistance, please do not hesitate to let me know.
Else if you can take a second to rate my service by clicking one of the stars at the top of the screen then submit, that would be greatly appreciated.