Recently I obtained a new cellphone and had a major issue trying to export my existing contacts to the new phone. I was left with a .dbk file which apparently is not very common and a rather strange file type. I just wanted to convert it to a .csv or a vCard file so I could import it where I needed the contact list to go. Since it took me a while to figure out how to do this, with much internet searching and false leads, I decided to write up the process I used to succesfully convert the file to a .vcf file:

1. Rename the .dbk file to a .zip file
   1. for example, I had a test.dbk file, which I renamed to test.zip
2. unzip the zip file
3. within the unzipped folder, you will likely find several files, one of which will be a contacts.vcf