Exclamation [Q] Helpp

ı have flashed my phone to 4.2.2

when ıt was 4.4 ı backed up my contacts-sms and calendar datas.

as you wish,now my backup file doesnt work for 4.2.2 (

please help how can ı open my backup file or restore it?

Phone: LG G2 now on 4.2.2 UK 10g
Backup File Extension: enc.