If you want to convert a CSV file into VCF without using Outlook, then you should use this GainTools CSV to vCard Converter, which helps you to easily handle multiple contact files without any technical issue. It's a completely independent utility, so you don't need Outlook and other external tools. You can quickly convert a large CSV contacts file into VCF in one simple process. All contact details, such as name, number, email, and other information, are secured. It is an offline tool that supports all Windows OS. It also provides a preview option to recheck all contact information. A free demo version is also available to test the process.