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If you have windows Lumia phone (nokia) and running windows 8.1 then this small App is very helpfull for you. Contacts + message backup you Just need to download this app from windows store and you are good to go (you can view this app in settings you cannot exclusively open this app) once you installed the app your contacts and messages will get backup on sd card automaticaly in vfc and Xls Format. In Windows phone by deafult windows Live id will be available for backup of your contacts but for that your data will be consumed. This is very usefull app if you want to save the data.
Here is the app link Windows Conact + Message Backup
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