Initially, download vCard Export Tool and launch perfectly on your computer desktop. When, it gets launched, the screenshot will be shown as:
Now, you will see different options are available on the software screen.
Then, click on Add File(s)/Add Folder option to load VCF files. And, also choose "Remove" or "Remove All" buttons to remove loaded files.
Now, click on the Next button and choose the desired saving option.
Select Split and Merge vCard Files or Contacts
Split by each Contact
Split by number of Contacts
Split by Keyword
Merge vCard File Option
click on the Convert vCard to other VCF Versions button and choose the desired version option.
Select the destination path if you are exporting VCF files to file formats. (By default, it is set as Desktop.) And press the Export button to start the process.