Follow 5 steps to know the overall working of the vCard contact viewer: Step 1: Install the vCard Viewer software and run it on your system. Step 2: Click on the Add File option from the left pane. Step 3: Once the file is added, just click on the contact to read it. Step 4: Users can also add complete folder to open and read VCF contacts. Step 5: You can also upgrade to the pro version by simply clicking on Upgrade to Pro option.