What is contact file type which use in nokia N79

If you have stored your contacts into sim then yes. But this is unlikely. Just play with contact settings to export all contact to vcf file (windows phone has to be able to do it) and then just email or mms this file to your new and great beloved android and open that vcf file and save your contacts to phone book. For future, store all your contacts on your gmail account. Then when you get other android, after you type in your email all contacts comes back automaticly. Good luck

Open your contacts on tte galaxy S5 and long press on any contact.

This will bring up the selection menu.

Next, click to select all contacts and export from your SIM card or phone/tablet to SD card.

All exported contacts will be saved as .VCF on your SD card.

Insert this SD card into your new LG phone/tab and navigate to where the .vcf file is saved.

Click to open; a dialogue box will appear requesting for the application to ooen with

Select Contacts

All your transferred contacts after the processing will be visible and present on your new phone/tab

they are already vcf,just copy them to it

On your Sony Xperia Z phone, go to contacts list, click on the bottom right button with 3 dots icon, select 'Export contacts'. The contacts will be saved as a 'vcf' file in the location you select. The vcf file is the standard 'vCard' format used by many phones and apps. You can then import your contacts in the vcf file to your ipad.
https://discussions.apple.com/thread/4619772?tstart=0
http://www.ipadforums.net/threads/how-to-import-vcf-file-into-address-book.23905/

Simply open your contacts and go to menu there you can find a option import or export .In that option go to export to mmc card and wait for some time your contacts will be saved in mmc card as dot vcf (.vcf) file.

Windows phone can't do it, however you can import the vcf to a google account and then add the contacts straight from that google account

You see, I'm running Gingerbread 2.3.4 on my Defy for some time now, and I'm sorry for not being able to remember how it is done under Eclair or Froyo, but in Gingerbread, the Contacts application is a tab on the dialer one. Anyway, in the Contacts tab, if I go to 'Menu > Manage contacts', there are settings for exporting/importing contacts to/from the SD card. When exporting, a vcf file is generated in the SD card. When importing, a vcf is searched. So, for compatibility matters, I think you should use the Wildfire to export all your contacts, remove the SD card from the Wildfire, insert it into the Defy, and import your contacts from that file.
Hope it works for you.
Anyway, please, let me know if I can help you out any further.
Regards, Carlos

1. To save files received from bluetooth on sd card: Open messaging. Go to settings. Scroll to the end and select other settings. Change the default memory to Memory card. It will ask to copy or move the messages and file from phone memory to sd card. Select move to memory card.
Now all files will go to sd memory card.
2. To save all applications to sd card, open ovi store, go to settings, change installation preference from phone memory to sd card

you have to go to contact then you have to go management then you can see the option copy all click on that to copy all contact to another sim or device

loose wiring