How do I split a large VCF file into multiple contacts without losing data?

[charlesperry]

I have a large VCF (vCard) file that contains hundreds or possibly thousands of contacts. I need to split this file into individual contact files, but I want to make sure that no data is lost in the process—especially details like phone numbers, email addresses, and other fields.
What is the best method or tool to safely split a large VCF file into multiple contacts without any data loss?